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TCFI III Installation & Tuning Manual (includes

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1. 2 The TCFI should be operated in closed loop Make sure that the engine is warmed up oil temperature is in the 150 180 F range before doing a run and that engine status in TCFI IIl Log or TCFI III View shows closed loop operation If you have made any table edits allow one run for auto tuning before capturing data 3 Inadequate air flow for engine cooling is a major problem with many dyno systems Always let the engine cool off between dyno runs The use of a separate heavy duty industrial grade fan capable of generating at least 50 MPH air velocity at the front of the engine is recommended You can measure the air velocity with a handheld anemometer such as Extech P N 45118 available from Grainger 4 Usethe TCFI data logging capability Always download data with TCFI Ill Log software at the end of every run and study the results use the 10 samples sec download option Check engine and air temperatures throttle position manifold pressure and AFR TCFI III Log is a very powerful tool that can help you identify potential problems that may be affecting engine performance Inconsistent dyno test results are often the result of thermal problems engine temperature variations or hot soak effects 5 Dyno exhaust sniffer limitations Some of the older sniffers monitored CO and CO These systems are so slow and inaccurate that they should be totally disregarded Modern sniffers from Dynojet and Horiba use a wideband sensor sim
2. 600 610 Elapsed Time sec Trace 1 Trace 2 Time Scale amp RPM AFRCMD C RPM AFRCMD C 15Sec 1Min 5 Min Diag CVSS FRONTAFR VSS C FRONTAFR Code C MAP REARAFR MAP REAR AFR C FRONT BLM TPS C FRONT BLM Engine Status Closed Loop C REAR BLM C IAC C REARBLM Reset Time FRONT ADV ET C FRONT INJ Print Exit Display Log Interval sec 9 75 REAR ADV C IAT REAR INJ C RESERVED C USERIN USER OUT The following additional functions are available function is useful for determining the 6th gear from the Edit menu ratio required for Module Parameter setup in PC Link TCFI for 2007 2011 models with six Fue epp speed transmissions a 6th gear indicator terms of RPM and TPS percent at the cursor position TPS percent is compensated for idle light air This function is useful for determining what Misc Data Display shows the current fuel table cell is active at any given point in time barometric pressure and nominal IAC value The same RPM and TPS cell is active in all fuel value learned by system when engine is tables completely warmed up and at stable idle in condition Gear Ratio Display shows the calculated gear ratio RPM KPH at the cursor position This Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 TCFI III Manual Rev 2 1 386 304 0700 www daytona twintec com 5 2015 Page 38 OPERATING STATISTICS You can also display
3. IS PROBLEM FIXED M REINSTALL TCFI TURN IGNITION ON SET ENGINE SWITCH TO RUN IS CHECK ENGINE LED ILLUMINATED NO REPLACE TCFI YES REPLACE TCFI DOES ENGINE MISFIRE UNDER LOAD NO FOR MISC PROBLEMS CALL TECH SUPPPORT Daytona Twin Tec LLC 933 Beville Road Suite 101 H S 386 304 0700 www daytona twintec com Page 15 ES NO REPAIR UNDERLYING PROBLEM BEFORE INSTALLING TCFI REFER TO MOTORCYCLE SERVICE MANUAL DOES ENGINE START NO YES DOES CHECK ENGINE LED REMAIN ILLUMINATED OR ILLUMINATE AFTER A SHORT TIME NO YES REFER TO ENGINE DIAGNOSTICS SECTION FIX APPLICABLE PROBLEM DOES ENGINE STOP OR DROP CYLINDER AFTER SEVERAL MINUTES OF RUNNING NO YES REPLACE COIL IS PROBLEM FIXED YES NO DONE REPLACE TCFI YES REPLACE SPARK PLUGS SPARK PLUG WIRES AND COIL IS PROBLEM FIXED YES NO DONE REPLACE TCFI DOES ENGINE MISFIRE AT PART THROTTLE OR WHILE COLD NO YES CHECK FOR INCORRECT COLD START SETTINGS OR INTAKE LEAK IS PROBLEM FIXED YES DONE NO REPLACE TCFI Daytona FL 32119 TCFI III Manual Rev 2 1 5 2015 Filename TCFI3 Setup 2001 88CID dat Setup 2006 88CID dat TCFI3 Setup 2001 95CID dat TCFI3 Setup 2006 95CID dat Setup 2001 Gerolamy dat Setup 2001 VFl dat TCFI3 Setup 2007 96CID dat Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 Table 3 Setup File Listing Des
4. cylinder head temperature before closed loop corrections are saved to the BLM tables The default value is 95 degree C Engine status changes from cold to warm once the warm engine temperature is reached and the engine warmup time has elapsed Engine Warmup Time in seconds This parameter determines the minimum engine run time before closed loop corrections are saved to the BLM tables The default value is 260 seconds Engine status changes from cold to warm once the warm engine temperature is reached and the engine warmup time has elapsed Hot Soak Temperature in degree C units This parameter determines the minimum engine cylinder head temperature before special hot soak considerations apply when the engine is turned off The default value is 60 degree C Hot Soak Timeout in seconds This parameter determines the minimum engine off time prior to a hot restart before special hot soak considerations apply The default value is 60 seconds Delta TPS Gain this parameter determines the scaling of TPS values in the delta TPS based fuel Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 www daytona twintec com multiplier table Do not change this parameter from the default value of 5 Enlean Decay Rate this parameter determines the time constant of recovery from enleanment negative delta TPS values in the delta TPS based fuel multiplier table Do not change this paramet
5. cannot be directly saved by means of the TCFI III Log program However this data is constantly being logged TCFI III Manual Rev 2 1 5 2015 Page 34 by the TCFI unit and can be downloaded for example at the end of series of dyno runs Real time engine data is displayed on an instrument panel type layout with round tach and speedometer gauges and bar graph type gauges for most other parameters Barometric pressure any diagnostic codes status of the user input and output and status messages are displayed in additional windows If the engine is not running most values will appear as zero Displayed parameters include RPM engine crankshaft RPM numeric value displayed beneath gauge VSS vehicle speed in MPH or KPH numeric value displayed beneath gauge TPS throttle position 0 to 100 MAP manifold pressure in In Hg 29 92 In Hg or 101 3 kPa corresponds to atmospheric pressure ET engine cylinder head temperature IAT intake air temperature BAT battery voltage IAC idle air control stepper motor position higher number means more idle air AFR the air fuel ratio bar graph has dual pointers The yellow pointer on the left side is the air fuel ratio command from AFR table The white pointer on the right side is the actual air fuel ratio based on the exhaust gas oxygen sensor reading Note that the value will remain near 10 until the sensor has warmed up Front and rear cylinder AFR valu
6. r Twin Tec TCFI Fuel Injection System Installation amp Tuning Manual CAUTION CAREFULLY READ INSTRUCTIONS BEFORE PROCEEDING NOT LEGAL FOR SALE OR USE IN CALIFORNIA OR ON ANY POLLUTION CONTROLLED VEHICLES OVERVIEW The Twin Tec TCFI III fuel injection controller 386 304 0700 www daytona twintec com Page 1 process please contact our tech support at 386 304 0700 replaces the original equipment OE 36 pin Delphi 4 USB interface Read the USB interface instructions controller on 2001 2011 Harley Davidson motorcycles starting on page 17 install the USB drivers and with fuel injected Twin Cam series engines Note that configure the COM port the TCFI III is not compatible with 2011 Softail models 5 PC Link software used for setu and engine with CAN data bus The term TCFI is used tuning Read the PC Link TCFI III instructions throughout this document as a generic term and starting on page 19 and install the software refers to the new TCFI Ill controller unless otherwise noted 6 Data logging software Read the TCFI III Log instructions starti 34 and install the The TCFI III kit includes the new WEGO ae ee dual channel wide band exhaust gas oxygen sensor interface that allows simultaneous front and rear A cylinder auto tuning during actual riding conditions WARNING You must use version 2 0 or higher PC Link TCFI IIl software for setup and tuning You cannot use earlier CAUTION Tuning
7. BLM values Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 www daytona twintec com back to 100 and allows auto tuning to continue Save the edited setup file to disk and upload it to the TCFI Auto tuning is a statistical process The longer the operating time the greater the probability that more cells will be covered However even a varied operating cycle can miss some cells After you use the Apply BLM Table commands take some time to examine the modified Alpha N and front cylinder trim tables Unless your engine has some unusual camshaft and exhaust interactions the tables should appear smooth with gently rising slopes If you spot sharp spikes or dips these cells have probably been missed during auto tuning and will require some manual edits to smooth them into the surrounding terrain The Alpha N table represents percent injector pulse width fuel flow before correction for BLM front cylinder trim barometric pressure intake temperature and cold start enrichment You can use the following guidelines to smooth the Alpha N table 1 At part throttle low TPS Alpha N values in each row will tend to decrease as RPM increases because the throttle is choking air flow 2 At wide open throttle Alpha N values in each row will tend to follow the engine torque curve 3 In any given RPM column Alpha N values must always increase with TPS The front cylinder trim table may
8. Carefully open terminal for this purpose the Delphi strain relief and remove the clear plastic retainer Pull out the blue seals at pins 8 and 23 ua d dee dA d 2006 and later models with original equipment Pack connector on one end and a small female oxygen sensors remove and tape Up the existing wires at these pins Install the female Micro Pack terminal on the other end These extension wires re Used toiconnect the WEGO 1G Micro Pack terminals Pin numbers are marked on the TCFI as shown in Figure 22 The female Micro ME SUM TON Pack terminals are installed in the OE Delphi 10 Reconnect the battery ground cable Figure 22 WEGO Hookup 0 5V OUTPUT SCALED TO SWITCHED AFR 10 2 x VOUT 12V POWER LONG CABLE USED FOR SENSOR 1 FRONT FRONT SENSOR SENSOR 1 AFR SENSOR 1 INPUT OUTPUT FRONT FRONT AFR INPUT WEGO TCFI Ill COREE qwe REAR AFR INPUT REAR SENSOR WEGO OPERATION The free air calibration procedure should be performed at reasonable intervals every 250 500 For more information about wide band oxygen hours or whenever a sensor is replaced If you cannot sensors including the Bosch LSU 4 2 we suggest that get an LED to rapidly flash when its trimpot is turned you visit the Tech FAQ on our website at full clockwise you either have a damaged sensor or www daytona sensors com very high hydrocarbon levels in your environment The WEGO has red status LE
9. LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 www daytona twintec com a standard automotive relay returned to 12V When the user output is active the pin is grounded User input functions include Data Log Only default mode For data logging connected switches Ignition Retard applies user retard value 0 to 10 degrees whenever the user input is grounded To avoid potential conflicts do not select ignition retard mode if the user output is in NOS trigger mode Ignition Kill disables spark firing whenever the user input is grounded Can be used with an air shifter to reduce stress during shifts Stage RPM Limit activates stage RPM limit 2000 to 9900 RPM whenever the user input is grounded User output functions include Off default mode RPM And TPS Based Switch general purpose switch function based on RPM and TPS The user output is set on pulled to ground when RPM gt RPM On AND TPS gt TPS On The user output then remains on until it is reset off when RPM gt RPM Off OR TPS TPS Off This feature allows you to implement an RPM and TPS based window switch In the sample data above the use output would be active between 3000 and 5000 RPM if the throttle was opened above 90 NOS Trigger specifically designed to trigger an NOS system The user output is set on pulled to ground when RPM gt RPM On AND TPS gt TPS On AND VSS gt Minimum VSS The user
10. Users should not modify any of the advanced parameters without first consulting tech support Basic module parameters are displayed in a dialog box by using the Edit Basic Module Parameters command on the Edit menu Basic parameters include Closed Loop AFR Control Mode allows BLM block learn multiplier table updates based on feedback from an exhaust gas oxygen sensor Only select this checkbox if the WEGO wide band exhaust gas oxygen unit is connected to the TCFI Dual Independent Runner Intake you must select this checkbox if you are using a dual independent runner intake such as the BC Gerolamy Dual Flow or S amp S Cycle VFI Induction System With a standard Delphi intake system the MAP sensor is sampled as each cylinder approaches BDC on the intake stroke Dual independent runner intake systems have the MAP sensor connected to the front runner When you select this checkbox the MAP sensor is only sampled when the front cylinder approaches BDC on the intake stroke Continuous Barometric Pressure Update Mode recommended for operation in mountainous terrain with elevation changes of more than 3000 feet Barometric pressure is continually estimated from manifold pressure sampled at specific crank angle and TPS conditions Enable Low Fuel Warning you should select this option for 2004 2011 models equipped with a speedometer that includes a low fuel warning LED Automatic Nominal Idle IAC Update Mode recomme
11. VW connector is replaced with a smaller Deutsch DT 04 6P We offer replacement sensors with the Deutsch connector installed WEGO IIID INSTALLATION 1 Turn off the ignition switch and disconnect the battery ground cable before proceeding 2 In general the sensors should be mounted 2 8 inches from the head flange Available clearance will usually dictate the optimum location When choosing a mounting location allow several inches clearance for the sensor wire harness The wire harness must exit straight out from the sensor Do not loop the harness back onto the sensor body 3 2006 and later models with original equipment oxygen sensors all others skip ahead to step 4 You can use the original equipment OE oxygen sensor mounting bosses Remove the OE sensors You do not have to remove any of the OE wiring just tape up the mating connectors Do not install the new Bosch sensors until after the free air calibration procedure described in the following section Always use an anti seize lubricant such as Permatex 133A on the sensor threads Softail models may require removal of the seat post coil Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 www daytona twintec com bracket for clearance during installation of the rear sensor Skip ahead to step 5 18 x 1 5 mm weld nuts must be welded onto the exhaust pipes After welding run an 18 x 1 5 mm tap through the threads Failure to clean
12. and is compatible with H D scan tools that connect to the OE diagnostic link When the ignition switch is first turned on the check engine LED illuminates The LED goes out when the system initialization is complete If a diagnostic fault is detected while the engine is running the LED will illuminate Diagnostic codes can be read with a scan tool or by means of the TCFI Log software Most of the diagnostic codes are the same as those used by H D and the H D Electrical Diagnostic Manual for your model should be employed as a primary troubleshooting reference Certain diagnostic codes that are unique to the TCFI or require special consideration are listed below P0373 CKP Signal Lost This code will appear if the engine stalls Customers are often confused about the meaning of the term trips associated with codes especially P0373 This is an industry standard terminology If code P0373 shows 40 trips it means that the code was set 40 engine start cycles ago not that the code has been set 40 times and that the crankshaft position sensor is defective P0122 TPS Low or P0123 TPS High If these codes appear on a new installation the TPS idle adjustment is probably incorrect Refer to page 5 for details P0505 Loss of Idle Speed Control If this code appears on a new installation the throttle body idle stop setting is probably incorrect Refer to page 5 for details P0132 Rear Oxygen Sensor High P0134 Rear Oxygen Sensor L
13. manifold Try cycling the run stop switch several times to add additional priming fuel before 2 Trythe following starting procedure set the starting the engine If the engine starts normally run stop switch to run wait until the fuel pump you have confirmed that more fuel is required Try stops running slightly open the throttle and then adding 10 2096 more priming and cranking fuel as press the starter switch If the engine starts the explained in Paragraph 2 in the preceding section problem is insufficient air caused by an incorrect ifthe enone stalisatterranning for several idle stop setting Try turning the idle stop screw 9 g clockwise in 2 turn increments between trials Seconds AFR values TO ee S yon must allow the WEGO sensors to warm up for at least 3 Ether starting spray can be used as a diagnostic 15 seconds before starting the engine You can aid Try starting the engine after an application of observe data in real time or download data logged ether spray If the engine starts and momentarily using TCFI III Log For best results select the 10 runs at an abnormally high idle RPM the problem samples sec download option In most cases the is excessive air caused by an incorrect idle stop problem is caused by excessively lean AFR Based setting Try turning the idle stop screw on observed AFR values make appropriate counterclockwise in 2 turn increments between corrections to the idle cells in Alpha N table If
14. not attempt to use any aftermarket coil Due to the short lengths involved on motorcycle applications energy losses in spark plug wires are insignificant OE carbon core suppression cables will deteriorate after several years For a more durable replacement we suggest spiral core type spark plug cables CAUTION Do not use solid copper spark plug cables or non resistor type spark plugs The TCFI unit may misfire TCFI III Manual Rev 2 1 5 2015 Page 41 WEGO IIID INSTALLATION OVERVIEW When used with the Twin Tec TCFI Ill the dual channel WEGO IIID allows simultaneous front and rear cylinder fuel auto tuning during actual riding conditions The terms WEGO are used throughout this document as generic terms and refer to the various TCFI Ill and WEGO units unless otherwise noted The WEGO system uses low cost Bosch LSU 4 2 5 wire wide band oxygen sensors By utilizing miniature surface mount electronics technology digital signal processing techniques and a switching power supply for the sensor heater the WEGO provides the same level of accuracy as lab systems costing thousands of dollars The WEGO unit has dual 0 5 volt analog air fuel ratio AFR outputs that are connected to the TCFI for closed loop AFR control REPLACEMENT SENSORS AND ACCESSORIES The WEGO uses standard Bosch LSU 4 2 sensors used on a VW production application Bosch P N 0 258 007 057 058 or VW P N 021 906 262B The proprietary
15. output then remains on until it is reset off when RPM gt RPM Off OR TPS lt TPS Off OR VSS lt Minimum VSS As an additional safety feature to prevent engine damage the user output is immediately tripped off if the RPM limit is exceeded and cannot be set back on again until the TPS drops below the TPS Off level In NOS trigger mode the user retard value 0 to 10 degrees is applied whenever the user output is on Individual parameters are enabled or disabled grayed out based on the user functions you selected Once you have entered the appropriate user function parameters click on OK to save your edits to buffer memory If you click on Cancel all your edits are lost You can click on Restore Defaults to restore default values TCFI III Manual Rev 2 1 5 2015 Page 31 Figure 13 User Functions Dialog Box M User Functions User Input User Output Data Log Only Default Off Default Ignition Retard RPM And TPS Based Switch Ignition Kill C NOS Trigger C Stage RPM Limit RPM On 100 RPM steps Stage RPM Limit 100 RPM steps 2800 RPM Off 100 RPM Steps User Retard TPS On User Retard 0 10 deg o TPS Off 2c OK Cancel Minimum YSS MPH UPLOADING DATA Refer to the Downloading Data section on page 20 for details about USB interface hookup and COM port setup Before uploading make sure the module parameters are correct Upload data by using the Upload Data To command on
16. placed in the program folder If you accidentally delete this font use the Install New Font command from the Fonts folder File menu The filename associated with Monospace 821 BT is monos ttf TCFI CONNECTION The USB interface connects to the OE data link The OE data link uses a four terminal Deutsch connector that is usually found near the TCFI unit All models require installation of the green PC link jumper wire supplied with the TCFI kit between pin 9 of the Delphi connector that mates with the module and pin 1 of the OE diagnostic connector Refer to page 41 for details Turn the ignition key and engine run stop switches on to provide power to the TCFI unit Do not start the engine if you want to download data If the TCFI unit has been removed from the motorcycle you can do bench top programming by using an adapter harness P N TCFI ADAPT that includes a small 12 volt DC power supply COMI is used as the initial default port In most cases the USB interface will be assigned to a different COM port Refer to the USB Installation section on page 18 for details Use the Port Setup command on the Communications Menu to select the correct COM port The program will remember this selection REAL TIME ENGINE DATA DISPLAY When the engine is running you can display real time engine data on an instrument panel type screen by using the View Real Time Data command on the View menu Please note that real time engine data
17. save the spreadsheet as an Excel file TROUBLESHOOTING FLOWCHART Follow the troubleshooting flowchart shown on page 33 Experience has shown that most communication problems are user error or PC compatibility issues TCFI III Manual Rev 2 1 5 2015 Page 40 TCFI Ill PRE INSTALLATION CHECKS Make sure that the OE Delphi system is functioning correctly other than tuning issues before attempting TCFI installation If the OE Delphi system is setting diagnostic codes find and correct any underlying problems first Correct operation of the throttle position sensor TPS is critical for proper operation of the TCFI system The TPS has a resistance element similar to the volume control on a radio In time it will wear out and become noisy We recommend replacing the TPS after 10 000 miles TCFI Ill INSTALLATION 1 If motorcycle is equipped with security system TSSM module make sure system is disarmed Turn off the ignition switch and disconnect the battery ground cable before proceeding 2 Find and remove the Delphi module The OE module is usually located under the seat or under a side cover 3 Install the TCFI module Figure 20 shows a typical installation under a seat Most applications can reuse the original mounting hardware Some models use a mounting bracket with 10 32 studs The TCFI housing has insufficient clearance to accommodate the OE nuts with captive lock washers You will have to substitute 10 3
18. software is supplied on CDROM media or in the form of a compressed file downloaded from our website The installation process uses InstallShield This industry standard installer is based the new Microsoft Windows Installer service that greatly reduces potential problems such as version conflicts and allows for application self repair Before proceeding with installation shutdown any other applications that may be running For Windows Vista you must disable the User Account Control UAC during installation If you are not familiar with the UAC please refer to the Vista UAC Tech Note on our website s Tech FAQ for details Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 www daytona twintec com Use the Windows Explorer or the Run command from the Windows Start Menu to launch setup exe in the TCFI3_Log folder on the CDROM or the setup exe file downloaded from our website InstallShield will install the software in an appropriate folder under Program Files Once InstallShield has completed the installation TCFI Ill Log will appear on the Windows Start Menu You can then launch it just as you would any other Windows program TCFI Log requires the Monospace 821 BT fixed pitch printer font in order to properly align columns when printing The Monospace 821 BT font is included in the distribution media and automatically copied to your Windows Fonts folder during installation A backup copy is also
19. 0 as set under basic module parameters If the IAC value stays above 40 or drops below 25 the idle stop screw will require adjustment before proceeding with further tuning Stock Delphi and Screamin Eagle throttle bodies may require drilling out and retapping the idle stop screw Some trial and error adjustments to the idle stop may be required to obtain the nominal IAC value Turn the engine off and let it cool down between adjustments If the IAC position is too high turn the idle stop screw clockwise in 1 2 turn increments between trials to allow more air to flow through the throttle blade s Please note that if you make any adjustment to the idle stop screw you must also recheck and possibly re adjust the idle TPS setting as explained in the previous section CAUTION Failure to perform required TPS and idle stop adjustments is a leading cause of installation problems requiring tech support After making any required edits and idle adjustments repeat the start test and allow the engine to reach normal operating temperature Make sure the TCFI III Manual Rev 2 1 5 2015 Page 6 engine runs for at least 5 minutes and the status display shows warm closed loop operation otherwise BLM values will not be saved Based Priming Fuel Table and ET Based Cranking Fuel Table commands Select all cells right click the mouse use the Modify command on the pop up menu and enter 20 not 20 Remember to use the Save Tab
20. 2 small pattern nuts washers and conventional lock washers If you cannot obtain the required hardware locally please contact our tech support and we will send you a set at no cost On some Dyna models the electrical caddy must be modified to provide clearance for the TCFI Use a die grinder or Dremel motor tool to remove interfering plastic ribs 4 The TCFI parts bag includes a green PC link jumper wire with a male Deutsch terminal on one end and a small female Delphi Micro Pack terminal on the other end Install this wire between pin 9 of the Delphi connector that mates with the TCFI module and pin 1 of the OE diagnostic connector four terminal Deutsch Refer to the factory service manual for connector location and disassembly techniques 2001 2005 models will have an existing wire going to pin 1 of the OE diagnostic connector Remove and tape up when installing the PC link jumper wire Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 www daytona twintec com Figure 20 Typical Installation 5 Do not reconnect the battery ground cable until you have completed installation of the WEGO Do not attempt to start the engine until you have completed the initial setup GENERAL RECOMMENDATIONS The TCFI is designed to be used with the H D OE coil Fuel injected Twin Cam engines require a special coil with low primary resistance and an additional terminal for ion sensing Do
21. BLE DATA In addition to the ignition advance table there are five other 3D tables that you can edit AFR air fuel ratio Alpha N throttle position and RPM based fuel table front cylinder trim percent fuel trim for front cylinder and front and rear BLM block learn multiplier Before you can edit one of these tables you must either open a data file or download data from a TCFI unit Due to the somewhat irregular shape of these tables editing data by clicking on and dragging points on the chart is not feasible You must edit the numeric data on the spreadsheet grid Each table consists of 20 columns from zero to 7 500 RPM and 11 throttle position rows from 0 to 100 The 7 500 RPM value is used at all higher RPM levels TCFI III Manual Rev 2 1 5 2015 Page 22 Figure 9 BLM Table Showing Special Cells 3 PC Link TCFI Ill File Edit Communications Help PS API 500 750 1000 1250 1500 1750 2000 0 25 5 0 7 5 10 aro 94 38 83 95 97 102 107 98 91 aan 100 89 100 100 100 100 100 88 100 94 100 81 400 34 36 400 404 After you have edited a table you must use the Save Table Edits To Buffer command from the Edit menu to save your edits to buffer memory If you use the Close Table command from the Edit menu all your edits are lost Alpha N Table The Alpha N table is the main fuel table Alpha N is the technical term for throttle position and RPM Th
22. Ds for each If both LEDs keep blinking at the slow rate you channel When power is turned on the LEDs blink at a may have a low battery voltage condition Try slow rate until the corresponding sensor has reached connecting a battery charger normal operating temperature After installation the WEGO system requires free air calibration This should be done with the sensors dangling in free air The environment must be free of hydrocarbon vapors We suggest that you perform the free air calibration outdoors Turn the free air calibration trimpots on the WEGO full counterclockwise Turn on power and wait for 60 seconds so the system can fully stabilize Then slowly turn each free air calibration trimpot clockwise until the corresponding LED starts flashing at a rapid rate Try to set each trimpot at the point where its LED just starts to flash Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 TCFI IIl Manual Rev 2 1 386 304 0700 www daytona twintec com 5 2015 Page 43 Figure 23 WEGO Unit TROUBLESHOOTING FLOWCHART Follow the troubleshooting flowchart shown below Experience has shown that most units returned iFree SensoriStatus 84 for warranty are OK and another problem such as user t 2 Sensor zi p Sensor2Status S error a degraded sensor or bad power connections is nsor 2 Str Calibration later identified WEGO IIID sj wgwDaytona Sensor The WEGO includes internal diagnostic
23. O LOAD CUSTOM BIKE CONSIDERATIONS The TCFI can be used for custom bike applications The TCFI also has special features to accommodate aftermarket speedometers and tachometers even on 2004 and later H D models with the J1850 data bus The TCFI does not require the presence of a turn signal security module TSM TSSM However it does require all the engine sensors and actuators used with a standard H D application including a vehicle speed sensor VSS Prior to installation on a custom bike we suggest that you contact our tech support Improper wiring connections with missing or incorrect signals are the most common problem encountered with custom bike applications Like the Delphi module the sends RPM data to the instrument module over the J1850 data bus for 2004 and later models The TCFI also has a tach signal available on pin 3 of the 36 pin ECM connector This is a one pulse per revolution PPR 12 volt square wave signal with 50 duty cycle that is compatible with all standard tachometers and other RPM activated accessories such as shift lights 2004 and later models use the J1850 data bus for communication with original equipment tachometers however the tach signal on pin 3 can still be used if you are installing an earlier style H D or aftermarket tach Note that the tachometer is never connected to the coil If your motorcycle was not originally equipped with a tachometer and you need hookup instructions or th
24. P0123 Idle TPS High USERIN USER OUT FRONT CYLINDER 7 6 LE a 3 2 1 0 IDLE TPS DISPLAY You can check the idle TPS adjustment by using the View Idle TPS command on the View menu Turn the run stop switch on but do not start the engine when using this function Idle TPS volts are displayed on the TPS bar graph gauge All other instrument values will appear as zero With the throttle fully closed verify that the gauge display is between 30 to 80 volts If the value is outside this range you will have to adjust the TPS sensor For optimum performance adjust the TPS sensor to 40 volts Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 Mw oU AU ttt IAC MANUAL OVERRIDE The IAC Manual Override command on the Communications menu allows you to manually override the idle air control stepper motor position while the engine is running and vehicle speed is zero Once the vehicle is moving normal closed loop idle speed control always resumes This command is primarily used to calibrate larger aftermarket throttle bodies but can also be used as a diagnostic aid USER OUTPUT MANUAL OVERRIDE The User Output Manual Override command on the Communications menu allows you to manually override the user output on TCFI units This command can be used as a diagnostic aid to test accessory systems connected to the user output TCFI III Manu
25. TCFI III version of PC link software allows the user to program the new Gen Ill TCFI version of our fuel injection controller for Twin Cam series engines with custom ignition and fuel tables and other engine parameters The term TCFI is used throughout this document as a generic term and refers to the new TCFI Ill version unless otherwise noted After PC Link TCFI III is launched the main screen appears blank You have two options for obtaining data for editing You can open a previously saved data file by using the Open File command on the File menu or you can download data from an attached TCFI unit by using the Download Data From command on the Communications menu Note that TCFI data files use a dat extension You should create a separate folder to store these files Once you have TCFI data you can edit various 2D and 3D tables and engine parameters All 3D tables are accompanied by chart displays that help visualize the data You can also rotate the 3D chart display for a better view of a particular region You can print the data associated with an active table or engine parameters by using the appropriate Print command from the File menu When you open a file or download data from a TCFI module the data is stored in a buffer memory After editing a table you can save the edits to this buffer memory Once you have completed all your edits you can save the data in buffer memory to a file or upload it back to the TCFI module
26. Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 www daytona twintec com in red These red cells correspond to invalid sensor readings ET Based IAC Start Adder Table This table consists of IAC idle air control position as a function of engine temperature The values represent additional air flow through the idle system during engine starting Generally more air is required for a hot start especially after a hot soak Some of the engine temperature cells are highlighted in red These red cells correspond to invalid sensor readings Time Based IAC Start Adder Table This table consists of a multiplier factor percent units that is a function of elapsed time since engine start The multiplier factor is applied to the IAC start adder in order to compensate for time dependent characteristics of the throttle body after engine start especially after a hot soak The table values should always taper off from some initial value at zero elapsed time and must reach 0 at the maximum value of elapsed time 268 seconds If the engine runs above the desired idle RPM for several seconds when first returning to idle after the motorcycle has been driven some distance a higher initial multiplier value is required Editing Table Data You can edit table data using standard Windows copy and paste operations by selecting cells and then clicking the right mouse button to pop up the edit menu You can select cells by dr
27. agging the mouse with left button down You can also use the Modify command on the pop up menu When you enter a value the presence of optional sign or or percent characters affects the outcome of the Modify command as shown in Figure 7 Data Export and Import by Means of Drag and Drop You might want to export or import 2D table data to or from another application such as Microsoft Excel Arrange the program windows so that both the source and destination are visible one on the left side of the screen and the other on the right side seems to work best You must be able to see the information you want to drag as well as the location where you want to drop it To export from PC Link TCFI III to Excel use the left mouse button to select a range of data on the spreadsheet grid Then move the mouse cursor to an edge around the selection Hold the left mouse button TCFI III Manual Rev 2 1 5 2015 Page 26 down and drag the selection into Excel Release the left mouse button on the top left cell in Excel When importing into PC Link TCFI III from Excel use the same procedure except that Excel requires dragging and dropping with the right mouse button MODULE PARAMETERS Module parameters are divided into two categories basic parameters and advanced parameters Module parameters control the overall operation of the TCFI unit Setup and calibration of the TCFI unit will generally involve editing some of the basic parameters
28. al Rev 2 1 5 2015 Page 36 DATA LOGGING CHART DISPLAY You can also display data logged by the unit on a chart recorder type screen The data logging memory within the TCFI Gen III stores the last 36000 data points at 10 samples second This corresponds to 60 minutes of data When you use the Download Logged Data From command on the Communications menu the popup menu shown in Figure 16 will appear You can select the length of the data set that will be downloaded Once data has been downloaded it is automatically displayed The last data logged will appear at the right end of the chart You can save the data by using the Save File command from the File menu You can display a previously saved data file by first using the Open File command on the File menu and then using the View Chart command on the View menu Figure 16 Download Options oOx C 60 Minutes 2 samples sec Download Options 24 Minutes 5 samples sec Please note that real time engine data cannot be directly saved by means of the TCFI III Log program However this data is constantly being logged by TCFI unit and can be downloaded for example at the end of series of dyno runs Note that TCFI data files use a log extension You should create a separate folder to store these files You have a range of capabilities for analyzing downloaded data displayed in the chart recorder format You can select two parameters for display Tra
29. alue of 23 5 WEGO Warmup Time in seconds This parameter determines the minimum engine run time before closed loop AFR control Idle TPS in percent units This parameter determines the maximum TPS throttle position sensor value for closed loop idle speed control The default value is 1 096 Some throttle bodies may require a higher value for reliable idle speed control For more information on this subject please refer to the TCFI III Idle Tuning Tech Note TCFI III Manual Rev 2 1 5 2015 Page 28 Nominal Idle IAC steps this parameter determines the nominal IAC idle air control stepper motor position value learned by system when engine is completely warmed up and at stable idle condition For more information on this subject please refer to the TCFI III Idle Tuning Tech Note User Data you can enter up to 32 characters of user data that will be saved in EEPROM memory User data can contain comments or serial numbers Once you have entered the appropriate module parameters click on OK to save your edits to buffer memory If you click on Cancel all your edits are lost You can click on Restore Defaults to restore default values for a stock Twin Cam engine Advanced module parameters are displayed in a dialog box by using the Edit Advanced Module Parameters command on the Edit menu Advanced parameters include Warm Engine Temperature in degree C units This parameter determines the minimum engine
30. amount of fuel that is immediately asynchronously injected when the throttle is rapidly opened Higher values result in more fuel A zero value disables asynchronous injection TCFI III Manual Rev 2 1 5 2015 Page 29 Figure 12 Advanced Module Parameters Dialog Box M Edit Advanced Module Parameters Advanced Parameters Warm Eng Temp 75 125 deg C Engine Warmup Time 90 260 sec Hot Soak Temp 50 125 deg C Hot Soak Timeout 30 260 sec Delta TPS Gain 1 10 Enlean Decay Rate 10 30 Enrich Decay Rate 10 30 SPEEDOMETER CALIBRATION For 2001 2003 models the VSS scaling affects data displayed by TCFI III Log and idle speed control You must enter the value shown in Table 5 used for all models For 2004 2011 models with the instrument cluster on the SAE J1850 data bus the VSS frequency parameter sets the correct speedometer and odometer scaling You can find the exact value in the speedometer section of the factory service manual for your model Use the frequency value at 100 KPH Values for most 2004 2006 models are given in Table 6 Preliminary values for 2007 2011 models are given in Table 7 For models not listed you can use TCFI III Log software to examine data logged while the motorcycle was operated at a known speed in 6 gear Use the speedometer recalibration procedure as explained below to recalculate the VSS frequency Use the gear ratio display function and average several readings to determine th
31. and various tables please download the TCFI Ill Idle Tuning Tech Note TCFI III Manual Rev 2 1 5 2015 Page 4 THROTTLE BODY SETUP An alpha N throttle position and RPM based fuel control system such as the TCFI requires that certain condition be met by the throttle body All aftermarket throttle bodies and even some stock Delphi units will require adjustment for proper operation Idle control is by means of the IAC system The throttle blade s must remain at a fixed position against the idle stop screw when the throttle is closed The throttle body is affected by thermal expansion If the idle stop setting allows the throttle blade s to completely close and contact the throttle bore the blade s may bind while cold If the idle stop setting forces the throttle blade s to stay open too far the IAC system can lose control and set a diagnostic code Either case can result in starting and idle stability problems Issues with throttle blade linkage or cable binding are often encountered with installation of an aftermarket throttle body Verify that the throttle system operates smoothly that the take up cable has some slack and that the return cable forces the throttle blade s against the idle stop Verify that the throttle blade s do not bind when cold or hot If an initial adjustment is required for a new aftermarket throttle body and the manufacturer does not make a specific recommendation set the idle stop screw so tha
32. appear more complex and irregular with peaks and valleys corresponding to gas flow interactions within the intake and exhaust system However very sharp spikes and dips may require some smoothing If you edit the Alpha N or front cylinder trim table to smooth out values remember to use the Save Table Edits to Buffer command after editing each table Save the edited setup file to disk and upload it to the TCFI Continue to operate the motorcycle under varying conditions for another 1 2 hours Then repeat the process of downloading setup data examining the BLM tables using the Apply BLM Table commands smoothing the Alpha N and front cylinder trim tables saving and uploading back to the TCFI as previously described Continue this auto tuning process until most of the BLM cells remain in the 90 11096 range If spark knock is noted under wide open throttle or throttle roll on use PC Link TCFI III software to edit the ignition advance table and reduce the ignition advance 3 5 degrees under the conditions that cause spark knock Using the TCFI III Log software to examine engine data may be very helpful for TCFI Ill Manual Rev 2 1 5 2015 Page 8 determining exactly what manifold pressure and RPM values were encountered A common error is to assume spark knock only occurs at high MAP manifold absolute pressure values Large displacement engines are prone to spark knock at relatively low MAP values during throttle roll on You ma
33. apsed time 251 seconds ET Based Front and Rear Cylinder Cold Start Enrichment Table These tables consist of a fuel cold start fuel multiplier percent units that is a function of engine temperature Individual tables are used because most engines exhibit significant differences in the characteristics of the front and rear cylinders These tables also do double duty for hot soak enrichment Note that a significant enrichment is required at high temperatures due to reduced injector flow Some of the engine temperature cells are highlighted in red These red cells correspond to invalid sensor readings You may need to edit these two tables for optimum cold start and restart after hot soak Please refer to the TCFI Ill Idle Tuning Tech Note for more information on this subject ET Based Idle RPM Table This table consists of desired idle RPM as a function of engine temperature The ET based IAC position see table description below is adjusted to maintain the desired idle RPM Some of the engine temperature cells are highlighted in red These red cells correspond to invalid sensor readings ET Based IAC Position Table This table consists of IAC idle air control position as a function of engine temperature Greater IAC values result in more idle air and higher idle speed IAC position is continuously reduced as the engine warms up even if the engine is not idling Some of the engine temperature cells are highlighted Daytona Twin
34. at you always leave this screw fully counterclockwise When the run stop switch is turned on the idle air control motor will move to the starting position and the fuel pump will be energized for several seconds making an audible buzz Do not press the starter button until the check engine light goes out and the fuel pump stops buzzing When you turn the run stop switch off the idle air control motor requires several seconds to return to its home position After turning the run stop switch off you must wait for 5 seconds before turning the switch on again If the engine stalls we suggest that you cycle TCFI Ill Manual Rev 2 1 5 2015 Page 5 the run stop switch off for 5 seconds and then on again before attempting a restart We recommend that you let the engine idle for about 20 30 seconds before operating the motorcycle This allows the closed loop idle air control system to stabilize idle RPM If you make any changes or adjustments to the throttle body disconnect the battery swap out the TCFI unit or upload new data or firmware you must also cycle the run stop switch as explained above in order to properly initialize the idle air control motor IDLE TUNING Some applications will require adjustment of the idle stop screw This should be completed before the motorcycle is driven Please note that during the initial period after engine start fuel control is open loop no feedback from the WEGO sensors and relies en
35. ave the equivalent of open drag pipes and the WEGO sensors will not read accurate AFR values except at wide open throttle You can reduce reversion effects in open drag pipes and mufflers without restrictive baffles with the modification shown in Figure 1 Use washers with an OD that is 2 8 to 3 4 the ID of the pipe for example 1 1 2 OD washers are suitable for pipes with an ID of 2 to 2 25 Weld 14 20 socket head cap screws to the washers as shown Drill holes at the bottom of the pipes about 2 from the end and use decorative acorn nuts to secure the washer assemblies We suggest that you use stainless steel hardware The washers will reflect positive pressure waves that will cancel out the negative pressure waves reflecting from the end of the pipes You can turn the washers just like throttle blades to provide more or less restriction Dyno tests will show a significant increase in midrange torque and a small drop in top end horsepower as the restriction is increased Figure 1 Exhaust Mod to Reduce Reversion Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 www daytona twintec com Reversion effects will also occur with certain exhausts used on bagger style motorcycles where two pipes split off near the rear cylinder At part throttle air is actually sucked into the left tailpipe The only solution is to install a true dual type performance exhaust Reversion e
36. by using the appropriate command from the File or Communications menu PC Link TCFI Ill version 2 0 uses estimated rear wheel horsepower as measured by a chassis dyno in place of the estimated engine horsepower figure used in previous versions When opening older files or downloading setup data originally created with an earlier version re enter the estimated rear wheel horsepower Use 85 of the original value i e multiply engine horsepower by 85 to arrive at the correct lower value for rear wheel horsepower PC Link Ill is only compatible with TCFI Ill units Files created with the earlier versions of PC Link or PC Link TCFI IID software are automatically converted to the new file format when opened however several tables and parameters must be edited Please refer to our tech support for details before attempting to use old files PC Link TCFI Ill software will not communicate with earlier Gen 1 or Gen TCFI units Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 www daytona twintec com PC REQUIREMENTS We recommend a laptop with Pentium processor and super VGA display SVGA with 1024 x 768 pixel resolution running Windows XP Vista 7 Data chart display is graphics intensive and a high speed Pentium processor is recommended Processors slower than 300 MHz will exhibit sluggish program loading and response The PC must have a CDROM drive for program loading and an a
37. ce 1 is displayed in red with its Y axis legends on the left side of the chart Trace 2 is displayed in green with its Y axis legends on the right side of the chart The X axis is always elapsed time You can select from one of three time scales You can use the scroll bar to move the chart display window in terms of elapsed time If you hold the left mouse button down within the chart area a cursor line appears The exact Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 www daytona twintec com values of the parameters displayed on trace 1 and trace 2 and the elapsed time appear in windows above the chart If you want to analyze the elapsed time between two events for example the time required to accelerate from 0 to 60 MPH you can move the cursor to the first event and then click on the Reset Time Display button You can print the displayed chart to any Windows printer by clicking on the Print button a color inkjet printer is recommended for best results Data parameters include RPM engine crankshaft RPM VSS vehicle speed in MPH or KPH MAP manifold pressure in In Hg 29 92 In Hg or 101 3 kPa corresponds to atmospheric pressure TPS throttle position 0 to 100 AFR CMD air fuel ratio command 10 1 to 20 1 This is the AFR value the TCFI is attempting to maintain FRONT AFR REAR AFR air fuel ratio based on the exhaust gas oxygen sensor reading 10 1 to 20 1 Fron
38. closed loop fuel control places constraints on the choice of exhaust system The WEGO system may give inaccurate results in certain situations Wide Open Throttle Exhaust reversion Reversion is the term for a negative pressure wave that can suck ambient air back into the exhaust and cause an erroneous lean AFR indication Open drag pipes suffer from reversion effects Please note that if you use drag pipes or other open pipes auto tuning may not be possible at idle or part throttle due to reversion effects In this case you have three options 1 Modify the exhaust to allow auto tuning at idle and part throttle by adding a restriction such as the washers shown in Figure 1 or some other type of baffling For race applications you can remove the TCFI III Manual Rev 2 1 5 2015 Page 11 restriction after auto tuning the idle and part throttle cells and then lock out closed loop operation by using the special value 0 in the BLM tables for these cells 2 Use a rubber hose to extend the exhaust length during auto tuning at idle and part throttle For more information please contact our tech support 3 Manually tune the fuel tables for idle and part throttle cells This involves trial and error and is not recommended Closed loop operation in idle and part throttle cells must be locked out by using the special value 0 in the BLM tables for the affected cells WARNING If you can insert a broomstick through the mufflers you h
39. cription 2001 2005 88 CID engines with stock compression performance camshafts low restriction air cleaner and low restriction exhaust Also use this file for 2006 engines with aftermarket siamesed runner throttle body 2006 88 CID engines with stock compression performance camshafts new style H D throttle body inc SE version low restriction air cleaner and low restriction exhaust 2001 2005 95 CID engines with 10 1 or higher compression high flow heads performance camshafts aftermarket type throttle body 50mm or greater low restriction air cleaner and low restriction exhaust Also use this file for 2006 engines with aftermarket single plenum throttle body 2006 95 CID engines with 10 1 or higher compression high flow heads performance camshafts new style H D throttle body inc SE version low restriction air cleaner and low restriction exhaust 2001 and later 95 CID engines with 10 1 or higher compression high flow heads performance camshafts BC Gerolamy dual independent runner throttle body low restriction air cleaner and low restriction exhaust Call tech support for additional information before using on 2006 2011 applications 2001 and later 95 CID engines with 10 1 or higher compression high flow heads performance camshafts S amp S Cycle VFI induction system and low restriction exhaust Call tech support for additional information before using on 2006 2011 applications 2007 2011 96 CID engines with
40. cylinders The BLM tables are continually updated whenever the system is operating in closed loop generally 30 seconds after engine start The BLM tables are updated based on the AFR error difference between AFR command and actual AFR read by the WEGO system During auto tuning BLM values are only saved if the engine reaches 95 C 200 F and runs for at least 5 minutes This is set by warm engine temperature and engine warm up time parameters refer to page 29 In cold climate areas you may have to use a lower value for warm engine temperature Additional cold start enrichment fuel is applied based on engine temperature and elapsed time since engine start Priming fuel is injected when the run stop switch is cycled on A fixed pulse width injection is also used during cranking RPM 400 Two tables set the priming and cranking pulse widths based on engine temperature TCFI 1 CLOSED LOOP IDLE SPEED CONTROL ENGINE TEMP IAC L IAC ENGINE TIME TABLES SYSTEM CONDITIONS FOR CLOSED LOOP CONTROL 1 TPS lt 1 2 ZERO VEHICLE SPEED Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 www daytona twintec com CYLINDER TRIM TABLE FRONT FUEL INJECTOR ENGINE FRONT WIDE BAND OXYGEN SENSOR REAR FUEL INJECTOR ENGINE The output of the idle RPM control loop is idle air control IAC stepper motor position ranging from 0 127 A higher IAC value a
41. e tachometer is inoperative refer to the motorcycle service manual for more information 2001 2003 models have the vehicle speed sensor VSS connected to the speedometer A VSS signal is routed from the speedometer to pin 33 on the 36 pin ECM connector The J1850 data bus is used to send distance data to the turn signal security module TCFI Ill Manual Rev 2 1 5 2015 Page 13 TSM TSSM for turn signal cancellation On 2004 and later models the VSS is connected direct to pin 33 on the ECM Speed and distance data is sent on the J1850 data bus to the speedometer and TSM TSSM For all model years the ECM requires a valid VSS signal for idle RPM control and turn signal cancellation If you plan to install an aftermarket speedometer you must maintain the VSS signal to the ECM For 2004 and later models you can try connecting the VSS input on the aftermarket speedometer to the existing VSS signal on pin 33 leave the existing VSS ground and power connections undisturbed After completing the hookup you should test drive the motorcycle download data with III Log software check VSS data and verify that the ECM is still receiving a valid VSS signal If the speedometer does not function with this hookup it is not compatible with a fuel injected application TECH SUPPORT If you require tech support for tuning issues we will ask you to email us both the current setup file downloaded by means of PC Link TCFI III and a da
42. e 45
43. e 6 gear ratio Table 5 VSS Frequency at 100 KPH for 2001 2003 Models Model All 2001 2003 155 Hz Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 www daytona twintec com Min Injector Pulse Width msec Idle Integrator Gain 8 127 AFR Integrator Gain 1 127 AFR Deadband 0 0 1 0 Min AFR BLM 50 100 Max AFR BLM 100 150 Asynchronous Fuel Gain 0 255 Cancel Restore Defaults Table 6 VSS Frequency at 100 KPH for 2004 2006 Models Page 30 Model All exc Japan Japan Only Sportster 883 1431 Hz 1635 Hz Sportster 1200 1386 Hz 1526 Hz Dyna exc 1424 Hz 1583 Hz FXDP Dyna FXDP 1435 Hz N A Softail exc 1403 Hz 1501 Hz FXSTD Softail FXSTD 1382 Hz 1506 Hz Touring Models 1375 Hz 1493 Hz exc Police Touring Models 1435 Hz 1435 Hz Police TCFI III Manual Rev 2 1 5 2015 Table 7 VSS Frequency and 6 Gear Ratio for 2007 2011 Models Model VSS Frequency 6 Gear Ratio at 100 KPH RPM KPH Softail 1460 Hz 23 5 Speedometer Recalibration for 2004 201 1 models only You can easily recalibrate the speedometer and odometer to accommodate tire and gear changes Run the motorcycle on a chassis dyno at a constant speed Note the speedometer reading and the correct speed indicated on the dyno Use the following formula to calculate the new VSS frequency parameter N
44. e Alpha N table values are in percent units The calculated base injector pulse width determined by horsepower and injector size settings on the module parameters screen is multiplied by the Alpha N table value to determine the theoretical injector pulse width for a 14 7 air fuel ratio This value is then corrected for the desired air fuel ratio as set on the AFR table and BLM block learn multiplier to arrive at the actual rear injector pulse width From a practical standpoint the Alpha N table must be within about 20 of the required values for the TCFI system to successfully correct the injector Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 www daytona twintec com 2250 94 8 v 91 ind u A CY 2500 2750 3000 3500 4000 4500 5000 5500 100 100 100 100 400 101 101 99 106 40r 101 100 100 38 400 100 100 100 100 400 100 100 100 100 400 100 100 100 100 400 100 100 100 100 400 88 102 407 pulse width based on closed loop feedback from an exhaust gas oxygen sensor AFR Table The AFR air fuel ratio table sets the desired air fuel ratio under various operating conditions The air fuel ratio value is used in the rear injector pulse width calculation as explained above Typical air fuel ratios are 13 0 for idle 13 8 for cruise and 12 8 for wide open thrott
45. e left of the table corresponding to a cold start condition that are already higher than your desired idle RPM If you significantly increase idle RPM you may also have to make corresponding edits to the ET Based IAC Position table Please contact our tech support for details Then use the Edit 3D Table AFR Table command and change the applicable idle cells 750 1 500 RPM at 0 5 TPS to the desired AFR value Remember to use the Save Table Edits to Buffer command after editing each table Save the edited setup file to disk and upload it to the TCFI For additional idle tuning information please download the TCFI III Idle Tuning Tech Note TCFI III Manual Rev 2 1 5 2015 Page 10 DYNO TUNING CONSIDERATIONS Auto tuning using the procedures listed on pages 8 9 will get you within a few horsepower of the maximum that the engine can deliver If you decide to do dyno tuning for maximum power you can experiment with wide open throttle WOT ignition timing and AFR Please pay careful attention to the following dyno tuning considerations 1 Only edit the ignition advance and AFR tables Don t edit any other tables never make any changes to the BLM or Alpha N tables once auto tuning is completed The usual range for WOT ignition timing at 4 000 6 000 RPM is about 28 34 degrees BTDC The usual range for WOT AFR is about 12 5 12 8 Some engines may require a richer mixture possibly down to 11 5 to avoid detonation problems
46. e top left cell in Excel When importing into PC Link III from Excel use the same procedure except that Excel requires dragging and dropping with the right mouse button EDITING 2D TABLE DATA There are eleven 2D tables that you can edit Before you can edit one of these tables you must either open a data file or download data from a TCFI unit Each table consists of 17 columns with the upper row corresponding to the independent variable throttle position engine temperature elapsed time or IAC idle air control position You can edit the numeric data corresponding to the dependent variable on the lower row of the spreadsheet grid A typical 2D table is shown below Some of the engine temperature cells are highlighted in red These red cells correspond to invalid sensor readings TCFI III Manual Rev 2 1 5 2015 Page 24 After you have edited the table you must use the Save Table Edits To Buffer command from the Edit menu to save your edits to buffer memory If you use the Close Table command from the Edit menu all your edits are lost TPS Transfer Function Table This table determines the relationship between TPS sensor volts and TPS percent used in various 3D tables such as the Alpha N table Note that the table starts at 39 volts which is the nominal TPS sensor output with the throttle closed at idle Some aftermarket throttle bodies such as the S amp S Cycle VFI Induction System do not use a standard Delphi thro
47. ec com left button down You can also use the Modify command on the pop up menu When you enter a value the presence of optional sign or or percent characters affects the outcome of the Modify command as shown in Figure 7 Chart Operations You can rotate the 3D chart display for a better view of a particular region by dragging the mouse while holding both mouse buttons down PC Link TCFI Ill is intended to be an open system and uses the Component One Chart 7 0 3D charting control The adventurous user can experiment with the chart property pages by right clicking on the chart Almost any chart property can be changed Click on the Help button for more information If you corrupt the chart exit and restart PC Link TCFI Ill Data Export and Import by Means of Drag and Drop You might want to export or import 3D table data to or from another application such as Microsoft Excel Arrange the program windows so that both the source and destination are visible one on the left side of the screen and the other on the right side seems to work best You must be able to see the information you want to drag as well as the location where you want to drop it To export from PC Link TCFI Ill to Excel use the left mouse button to select a range of data on the spreadsheet grid Then move the mouse cursor to an edge around the selection Hold the left mouse button down and drag the selection into Excel Release the left mouse button on th
48. ems widely used for aftermarket tuning lack this level of sophistication and are incapable of simulating realistic operating conditions over an extended period of time We have also observed considerable problems with maintaining steady RPM values during load control on Dynojet equipment If you plan to auto tune on a dyno please contact our tech support for details Use TCFI III View to monitor AFR If AFR values appear very lean above 14 5 we suggest that you edit the Alpha N table to add 15 20 fuel to all cells except idle cells before proceeding Auto tuning works best if you start with a slightly rich Alpha N table Download the current setup with PC Link TCFI III software and use the Edit 3D Table Alpha N Table command You can select groups of cells right click the mouse use the Modify command on the pop up menu and enter 15 not 15 Remember to use the Save Table Edits to Buffer command after editing each table Save the edited setup file to disk and upload it to the TCFI After 1 2 hours of engine operation download the current setup with PC Link TCFI III software and use the Edit 3D Table BLM Tables Edit Front and Edit Rear BLM Table commands to examine the BLM tables Cells that are shaded red indicate that the system has run out of correction range Then use the Apply Front and Apply Rear BLM Table commands to automatically correct the Alpha N fuel table and front cylinder trim table This also resets all the
49. engine operating statistics logged by the TCFI unit Data logged by the TCFI unit must be downloaded before it can be displayed by using the Download Statistics and Diagnostic Codes command on the Communications menu Once data has been downloaded it will automatically be displayed If you exit from the display you can view the same data again by using the View Statistics command from the View menu Please note that this data is not saved The data is fairly self explanatory Total hours represents the total time that the engine was running ID represents the firmware identification This field typically includes the manufacturer Twin Tec model number program revision and author s initials and date Note that the date is not a manufacturing date code just the date for the particular firmware release Elapsed time is displayed for 13 RPM bands from idle to 6999 RPM Note that elapsed time data is rounded off during each engine run so the sum of the elapsed time figures may not precisely match the total hours The program also displays the maximum engine RPM time at the RPM limit in seconds for better resolution and the number of engine starts Clicking on the Print Statistics button prints a report When you click on this button a small data entry screen pops up and allows you to add a serial number or comment that will appear on the printout You can also use the Print command from the File menu Figure 18 Operating Stat
50. epower Use 85 of the original value i e multiply engine horsepower by 85 to arrive at the correct lower value for rear wheel horsepower Injector Size flow rate in gm sec units Refer to Table 4 You must enter the correct injector size value in order for the TCFI to calculate the base injector pulse width Table 4 Injector Size for 2001 2011 Models Model Injector Size gm sec 2001 2005 Stock Twin 4 22 Cam 88 2006 2011 Stock Twin 3 91 Cam 2006 2011 Screamin 4 89 Eagle P N 27654 06 Twin Tec TCFI INJ 5S fits 6 00 2001 2005 only Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 www daytona twintec com TCFI III Manual Rev 2 1 5 2015 Page 27 Figure 11 Basic Module Parameters Dialog Box Edit Basic Module Parameters Basic Parameters Closed Loop AFR Control Mode Dual Independent Runner Intake Continuous Barometric Pressure Update Enable Low Fuel Warning v Automatic Nominal Idle IAC Update Mode Anti Stall IAC Mode Estimated Wheel HP at 6000 RPM w Injector Size gm sec Base Injector Pulse Width msec RPM Limit 100 RPM steps Cranking Revs 0 3 Base Injector Pulse Width in millisecond units Please note the base injector pulse width is a calculated value that you cannot directly edit RPM Limit you can enter any value from 3 000 to 9 900 RPM Values are automatically rounded to
51. er from the default value of 25 Enrich Decay Rate this parameter determines the time constant of recovery from enrichment positive delta TPS values in the delta TPS based fuel multiplier table Do not change this parameter from the default value of 20 Minimum Injector Pulse Width in millisecond units This parameter affects linearity of the fuel tables at low values Do not change this parameter from the default value of 0 1 Idle Integrator Gain this parameter determines the response time of closed loop idle speed control A higher value will result in a faster response but may cause instability oscillation The default value is 10 AFR Integrator Gain this parameter determines the response time of closed loop AFR control A higher value will result in a faster response but may cause instability oscillation The default value is 30 AFR Deadband in AFR units This parameter determines the deadband minimum error before system response for closed loop AFR control A small deadband value improves closed loop stability and reduces hunting The default value is 0 3 Min AFR BLM in percent This parameter limits the minimum BLM value when the system is correcting a rich condition The default value is 7596 Max AFR BLM in percent This parameter limits the maximum BLM value when the system is correcting a lean condition The default value is 125 Asynchronous Fuel Gain this parameter determines the
52. es are displayed for all TCFI Ill units when the WEGO is installed BLM block learn multiplier main fuel table correction factor based on exhaust gas oxygen sensor feedback shown as percent value from 75 125 Separate front and rear cylinder BLM values are displayed FRONT INJ REAR INJ injector pulse width in milliseconds or duty cycle in percent FRONT ADV REAR ADV ignition advance in degrees BTDC You can also select the vehicle speed temperature pressure and injector data units used for real time engine data display and data logging chart display Use the Units Selection command on the Edit menu A dialog box will appear as shown below You can select miles per hour MPH or kilometers per hour KPH vehicle speed units Farenheit F or Celsius C temperature units inches of mercury In Hg or kilopascals kPa manifold pressure units and pulse width in milliseconds or duty cycle in percent for injector data The program remembers the selections you have made Figure 14 Units Selection Units Selection Pressure In Hg kPa Injector Data F st T Pulse Width msec Celsius C Duty Cycle o Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 TCFI III Manual Rev 2 1 386 304 0700 www daytona twintec com 5 2015 Figure 15 Real Time Engine Data Display EZ Ye FI ill Dat File Edit View Communications Help BARO IN HG DIAG CODE
53. ew VSS Freq Original VSS Freq x Speedo Reading Indicated Dyno Speed For example if the original VSS frequency parameter was 1403 Hz the speedometer reading is 60 MPH and the indicated dyno speed is 57 MPH then the new VSS frequency parameter should be 1476 Hz 1403 Hz x 60 MPH 57 MPH The speed units cancel out so you can use either MPH or KPH units in the calculation as long as you use the same units for both the speedometer reading and dyno speed For best accuracy use a test speed near highway cruising speed USER FUNCTIONS User functions are displayed in a dialog box by using the Edit User Functions command on the Edit menu User functions control the operation of the user input and user output of the TCFI unit The user input on pin 16 is a 0 to 5V input that is internally pulled high to 45V The input pin is sampled and the data is always logged as part of the TCFI data logging function The user input can also be used for other functions such as selecting a stage RPM limit In this case the user input is active low with a threshold of about 2 5V You can connect a switch between the user input and ground When the switch is closed and the user input pin is grounded the stage RPM limit our other selected function will be activated The user output on pin 22 can drive a small load up to 0 5 amps and is protected against short circuits The user output is active low It can be used to drive Daytona Twin Tec
54. ffects will be most noticeable at idle part throttle low RPM cruise and decel Excessive scavenging Tuned exhausts in combination with a high overlap camshaft profile can pull unburned air and fuel mixture through the cylinder into the exhaust and cause an erroneous rich AFR indication Some aftermarket 2 into 1 systems such as the Thunderheader appear to suffer from this problem whereas others such as the Supertrapp Vance amp Hines Pro Pipe and White Brothers E series seem less affected Misfiring If the AFR is so rich that the engine misfires high levels of oxygen will remain in the exhaust gas and result in an erroneous lean indication CAUTION Insistence on using an inappropriate exhaust and consequent failure of auto tuning is a major cause of installation problems requiring tech support HOT STARTING PROBLEMS Some Twin Cam engines are prone to hot starting problems When cranked after a short hot soak the engine may kick back Over time this will cause damage to the ring gear and starter pinion The TCFI module uses an improved starting algorithm that includes a programmable cranking delay The TCFI module is shipped with a zero cranking delay it fires on the first recognized compression stroke This works best on stock and mildly modified engines High compression engines will generally require compression releases When compression releases are installed best starting results will be obtained by program
55. fy Selection Enter new value See examples below or Help for details Enter 30 to set all cells in selection to 30 Enter 5 to subtract 5 from each cell in selection Enter 10 to add 10 to each cell in selection Enter 80 to multiply each cell in selection by 80 Enter 7 5 to reduce each cell in selection by 7 5 Enter 15 to increase each cell in selection by 15 Cancel fao You can also use the Modify command on the pop up menu When you enter a value the presence of optional sign or or percent characters affects the outcome of the Modify command Chart Operations You can rotate the 3D chart display for a better view of a particular region by dragging the mouse while holding both mouse buttons down PC Link TCFI III is intended to be an open system and uses the Component One Chart 7 0 3D charting control The adventurous user can experiment with the chart property pages by right clicking on the chart Almost any chart property can be changed Click on the Help button for more information If you corrupt the chart exit and restart PC Link TCFI Ill TCFI III Manual Rev 2 1 5 2015 Page 20 Data Export and Import by Means of Drag and Drop You might want to export or import 3D table data to or from another application such as Microsoft Excel Arrange the program windows so that both the source and destination are visible one on the left side of the screen and the other on the right side seems to wor
56. he angles of the idle ports Remove the TPS sensor to facilitate clamping the throttle body in a vise 2 When installing the VFI Induction disregard the S amp S Cycle instructions related to idle stop and TPS adjustment Follow the procedures we give on page 5 3 Carefully check wiring connections All OE H D signals refer to H D Electrical Diagnostic Manual must be connected Common problem areas include failure to connect the vehicle speed sensor VSS signal Some VFI applications did not use a manifold absolute pressure MAP sensor The requires a MAP sensor ported to the front cylinder intake runner 4 Use the setup file TCFI3_Setup_2001_VFI dat This setup file is intended for a 95 CID engine and the S amp S Cycle 4 6 gm sec injectors commonly supplied with the VFI Induction System You can modify this setup file by editing the module parameters and entering an appropriate value for the estimated horsepower and actual injector size IDLE TUNING CONSIDERATIONS Some large displacement engines with high overlap long duration camshafts may not idle properly at the nominal 1 000 RPM and 13 5 AFR settings used in the standard setup files You may have to increase the idle RPM to a higher value such as 1 100 RPM and enrich the idle to 12 5 12 8 AFR Download the current setup with PC Link TCFI IIl software and use the Edit 2D Table ET Based Idle RPM command to increase the idle RPM Do not decrease values at th
57. he page 14 for further information about diagnostic codes You can clear historical diagnostic codes by using the Clear Historical Diagnostic Codes command from the Communications menu The elapsed time data in the various RPM bands can be displayed in the form of a histogram chart by clicking on the Histogram button Color coding of the bars helps to interpret the data The idle RPM band is blue normal operating RPM bands are green and high RPM bands are yellow and red The chart is automatically scaled for best display You can print the chart along with a complete statistics report by clicking on the Print Chart button Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 www daytona twintec com 2 v 3 3500 3999 4000 4499 5500 5999 N 6000 6499 6500 6999 1 IMPORTING DATA INTO EXCEL Data files saved from TCFI III Log are in comma delimited ASCII format You can easily import a data file into other programs such as Microsoft Excel for further analysis You can also view data files with a text editor such as Windows WordPad To import a data file into Excel 1 Start Excel In the File Open dialog box select Files of type All Files Then browse for the data file The Text Import Wizard appears For step 1 select delimited file type For step 2 select comma delimiter For step 3 select general column data format Then click on Finish You can then format the data and
58. he range of 80 120 The IAC value should slowly go down as the engine reaches operating temperature and requires less idle air BLM values 386 304 0700 www daytona twintec com 18 19 20 Page 2 below 100 indicate that the TCFI is removing fuel in closed loop to correct a rich condition BLM values above 100 indicate that the TCFI is adding fuel in closed loop to correct a lean condition Refer to the TCFI operation section starting on page 3 for details If the BLM values go below 80 or above 120 anytime during the warm up period the system is running out of adjustment range Refer to the suggestions in the idle tuning section starting on page 6 Once the engine reaches 110 C 230 F ET do not shut the engine off disconnect the USB cable and ride the motorcycle for at least 15 minutes Repeatedly accelerate through the useable RPM range in every gear at different throttle positions Also operate the motorcycle at various fixed speeds likely to be encountered during normal riding For safety reasons wide open throttle runs should be done on a closed course If lean surging or spark knock is noted refer to the suggestions in the auto tuning section starting on page 8 Hot restart test After the initial ride shut the engine off and allow it to hot soak for 10 minutes To allow viewing and logging AFR data immediately after engine restart turn the ignition Switch on but leave the run stop switch in the stop posi
59. ial ignition switch on event Some of the engine temperature cells are highlighted in red These red cells correspond to invalid sensor readings ET Based Cranking Fuel Table This table consists of an injector pulse width that is a function of engine temperature The cranking pulse width is used during engine start Some of the engine temperature cells are highlighted in red These red cells correspond to invalid sensor readings Time Based AFR Cold Start Enrichment Table This table consists of an AFR cold start multiplier percent units that is a function of elapsed time since engine start This AFR cold start enrichment is applied to the values in the 3D AFR table The AFR values are multiplied by the time based AFR cold start Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 www daytona twintec com 112 120 144 160 M EEG ENG 1000 1000 1000 1000 1000 1000 1000 1000 100C gt enrichment and by the ET based AFR cold start enrichment For example assume that the AFR value in a given cell is 14 0 and that the time and ET based AFR cold start enrichment values are 50 and 15 respectively The actual AFR value for that cell then becomes 13 0 14 1 0 5 x 0 15 The time based AFR cold start enrichment should always taper off from 100 at zero elapsed time and must reach 0 at the maximum value of elapsed time 251 seconds In general the values in this table will be correct f
60. ilar to the WEGO sensor These sniffers are still subject to erroneous lean readings caused by reversion of atmospheric oxygen if the probe Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 www daytona twintec com cannot be inserted past the baffles in the exhaust Sensor degradation caused by leaded racing gas is acommon occurrence Another problem is sampling delay due to the long hose between the sniffer tip and actual sensor The bottom line is to trust your WEGO sensors and disregard any errant readings from an exhaust sniffer ENGINE TUNING GUIDELINES Higher AFR values correspond to a leaner less fuel condition The practical operating range for most engines using gasoline fuel is from approximately 11 5 to 14 7 AFR Combustion of a stoichiometric mixture exactly enough air to burn all the fuel results in 14 7 AFR indication Automotive engines with catalytic converters operate near 14 7 AFR during cruise and idle Air cooled motorcycle race engines usually require a richer mixture to limit cylinder head temperature and prevent detonation Table 2 lists recommended AFR values for race engines without emission controls Table 2 Recommended AFR Values Recommended AFR Operating Mode Cold Start first 30 sec 11 5 12 5 Part Throttle Cruise 13 0 14 0 12 5 12 8 values down to 11 5 may be used to reduce detonation EXHAUST CONSIDERATIONS The use of a WEGO system for
61. independent runner intake and throttle body System is used We have tested BC Gerolamy Dual Flow and S amp S Cycle VFI Induction systems If you plan on using another dual runner type system please contact our tech support before proceeding BC GEROLAMY DUAL FLOW THROTTLE BODY Follow the installation instructions supplied with the throttle body You can use the stock Delphi injectors for applications up to 185 HP Use the setup file TCFI3 Setup 2001 Gerolamy dat This setup file is intended for a 95 CID engine For large displacement engines you can modify this setup file by editing the module parameters and entering an appropriate value for the estimated horsepower and injector flow rate S amp S CYCLE VFI INDUCTION SYSTEM The TCFI has been successfully retrofit on many problematic VFI systems VFI systems are supplied with various fuel injectors Contact S amp S Cycle for information on the injector size supplied with your system Follow the installation instructions supplied with the VFI system with the following exceptions 1 Some early production units have undersize idle air ports All idle air ports leading to and from the IAC control must be at least 0 312 diameter If required mill ports to 0 312 diameter in a Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 www daytona twintec com Bridgeport mill do not attempt to use a drill Tilt the milling machine head to match t
62. ing fuel values may need to be decreased Try decreasing the priming and cranking fuel values by 20 Download the current setup with PC Link TCFI Ill software and use the Edit 2D Table ET 386 304 0700 www daytona twintec com Page 7 status with TCFI Ill Log Download the logged data Compare the front and rear AFR values after engine start to determine if adjustments are TCFI Ill Manual Rev 2 1 5 2015 required Refer to the TCFI III Idle Tuning Tech Note for more details AUTO TUNING The closed loop auto tuning process consists of operating the motorcycle through a wide range of loads and speeds while periodically monitoring progress using the PC Link TCFI III software Long rides at constant speed and load are of no value The best technique is to very slowly accelerate through the useable RPM range in every gear allowing several seconds of operation in each RPM and throttle position based cell Also operate the motorcycle at various fixed speeds likely to be encountered during normal riding For safety reasons wide open throttle runs should be done on a closed course We recommend auto tuning under actual riding conditions If this is not possible you can auto tune on a load control dyno Vehicle and engine manufacturers perform calibrations on dyno systems equipped with computer controlled variable speed fan drives that closely match the air velocity at the front of the engine to roll speed Dynojet load control syst
63. ions If you are not familiar with control systems concepts such as open and closed loop operation we suggest that you order Understanding Automotive Electronics Sixth Edition by William B Ribbens from www amazon com Chapter 2 includes an excellent introduction to control system theory The output of the AFR control loop is injector pulse width A higher pulse width causes more fuel to be injected and decreases the AFR towards a rich condition An initial estimate of horsepower and injector size flow rate is used to calculate a base injector pulse width Base injector pulse width corresponds to the amount of fuel required to generate a stoichiometric mixture 14 7 AFR at wide open throttle WOT 6 000 RPM and standard atmospheric conditions Base injector pulse width is then corrected for intake air temperature IAT and barometric pressure TCFI III Manual Rev 2 1 5 2015 Page 3 TCFI III CLOSED LOOP FUEL CONTROL BASE INJECTOR PULSE WIDTH FRONT ALPHA N MAIN FUEL TPS TABLE COLD START At any given RPM and throttle position TPS the corrected base injector pulse width is multiplied by the values in the Alpha N table main fuel table AFR table the AFR command front cylinder trim table only for the front cylinder and block learn multiplier BLM tables The BLM tables store closed loop correction factors based on feedback from the WEGO system Independent BLM tables are used for front and rear
64. isplayed on the TPS bar graph gauge The TPS value must be within the range of 30 80 volts If not refer to the throttle body setup and idle TPS adjustment sections starting on page 5 Turn the run stop switch off when complete Cold start test and initial auto tuning Position the motorcycle so that you can perform a cold start test while monitoring engine data with TCFI 111 Log software and then be able to disconnect the USB interface and ride the bike for initial auto tuning To allow viewing and logging air fuel AFR data immediately after engine start turn the ignition switch on but leave the run stop switch in the stop position Wait at least 15 seconds for the WEGO sensors to warm up and then start the engine Monitor real time engine data and status with Log software Allow the engine to idle until it reaches 110 C 230 F engine temperature ET This will typically take about 10 minutes A fan should be used to direct cooling air on the engine to more realistically simulate actual warm up conditions If the engine does not start or stalls refer to the diagnostic tips in the idle tuning section starting on page 6 Monitor front and rear cylinder AFR and block learn multiplier BLM ET and IAC values Keep notes on your observations of these values After 30 seconds the system should be operating in closed loop and maintaining the desired idle AFR nominal value of 13 5 The BLM values should remain within t
65. istics Display Twin Tec TCFI Ill Data Logging Program Operating Statistics Operating Data Total Hours 20 35 Maximum Engine RPM ID Twin Tec TCFI IIl Program Rev 3 0 CFS 2007 Seconds at RPM Limit Engine Starts RPM Band Idle 1000 1499 1500 1999 2000 2499 2500 2999 3000 3499 3500 3999 Hours 3 21 3 54 5 81 5 27 1 30 0 43 0 35 RPM Band Historical Diagnostic Histogram Print Statistics P0107 MAP Rationality Fault Codes P0563 High Battery Voltage 4000 4499 4500 4999 5000 5499 5500 5999 6000 6499 6500 6999 Hours 021 0 10 0 07 0 01 0 00 Trips 3 Trips 7 Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 www daytona twintec com TCFI III Manual Rev 2 1 5 2015 Page 39 Figure 19 Operating Statistics Histogram Chart TOX Twin Tec TCFI III Data Logging Program Operating Statistics Histogram 1000 1499 1500 1999 2000 2499 3000 3499 Print Chart Any historical diagnostic codes logged by the TCFI unit are listed along with the number of trips engine start cycles since the individual code was last logged Codes are automatically cleared after 50 trips Customers are often confused about the meaning of the term trips This is an industry standard terminology If a code shows 40 trips it means that the code was set 40 engine start cycles ago not that the code has been set 40 times Refer to t
66. k best You must be able to see the information you want to drag as well as the location where you want to drop it To export from PC Link TCFI III to Excel use the left mouse button to select a range of data on the spreadsheet grid Then move the mouse cursor to an edge around the selection Hold the left mouse button down and drag the selection into Excel Release the left mouse button on the top left cell in Excel When importing into PC Link TCFI III from Excel use the same procedure except that Excel requires dragging and dropping with the right mouse button EDITING IGNITION ADVANCE TABLE DATA Once you have advance table data by opening an existing data file downloading data from a TCFI unit or creating a new table as explained in the previous section you can edit the data by clicking on and dragging individual points on the 3D chart display or you can directly edit numeric data on the spreadsheet grid The table consists of 20 columns from zero to 7 500 RPM and 11 manifold pressure MAP rows from 10 to 30 In Hg The 7 500 RPM advance value is used at all higher RPM levels and the 10 In Hg MAP Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 www daytona twintec com advance value is used at all lower MAP levels Note that 10 In Hg corresponds to a high vacuum deceleration or idle condition and that 30 In Hg corresponds to wide open throttle WOT Advance values must be between ze
67. le To prevent engine overheating avoid lean air fuel ratios exceeding 14 5 under cruise conditions Front Cylinder Trim Table The front cylinder trim table values are in percent units The calculated injector pulse width is multiplied by the front cylinder trim value to arrive at the front injector pulse width Required front cylinder trim values are dependent on engine gas flow dynamics The front cylinder trim table is automatically corrected when the Apply Front BLM Table command is executed If you exceed the horsepower limits TCFI III Manual Rev 2 1 5 2015 Page 23 listed in Table 1 on page 9 front cylinder trim may fail BLM Table The rear BLM block learn multiplier table is shown in the graphic above BLM values are in percent units and represent a correction factor required to obtain the air fuel ratio set on the AFR table BLM values are updated based on closed loop feedback from the exhaust gas oxygen sensor Some special considerations apply to the BLM tables BLM values are limited in range from 75 to 125 The range limits are set on the module parameters screen When a BLM cell nears the range limit the cell color changes to red to alert the user that the system has just about run out of correction range and that the corresponding cell in the Alpha N fuel table must be changed BLM cell values 0 and 1 command special functions and these cells are highlighted in blue Closed loop feedback is disabled in an
68. le Edits to Buffer command after editing each table Save the edited setup file to disk and upload it to the TCFI Try re installing the stock ECM Cycle the run stop The idle tuning step is complete when BLM values stay within the range of 85 115 during the warm up phase and the IAC value is within the range of 25 40 once the engine reaches normal operating temperature If these criteria cannot be met please 5 contact our tech support before proceeding For additional idle tuning information please download the TCFI III Idle Tuning Tech Note Diagnostic tips if the engine does not start 1 Verify that the TCFI is properly installed and set up that the battery is fully charged that the IAC system is initialized cycle run stop switch and that the engine is not flooded from excessive priming caused by repeatedly cycling the run stop switch during setup Disconnect the fuel pump relay and crank the engine to clear flooding switch to re initialize the IAC system If the engine does not start with the stock ECM there may be an underlying problem that requires correction If the engine starts with the stock ECM but not the TCFI please contact our tech support for assistance Diagnostic tips if the engine stalls 1 If the engine momentarily starts runs for several revolutions less than 2 seconds and then stalls priming and cranking fuel values may be insufficient to build up the required fuel film in the intake
69. lick on this new port Click on the Port Settings tab Click on Advanced In most cases the wizard will have installed your new USB Interface as COM5 Note the COM port number assigned for your system For optimum performance you should also change the BM Options Latency Timer to 2 msec as shown in the figure below TCFI III Manual Rev 2 1 5 2015 Page 17 5 Once you have configured a COM port number for using the Port Setup command from the your new unit make sure that you use this same Communications menu COM port selection in the Twin Tec software by Figure 5 COM Port Configuration Advanced Settings for 5 COM Port Number COM5 v USB Transfer Sizes Cancel Select lower settings to correct performance problems at low baud rates Selecthigher settings forfaster performance Defaults Receive Bytes 4096 v Transmit Bytes 4096 v BM Options Miscellaneous Options Select lower settings to correct response problems Serial Enumerator Serial Printer Latency Timer msec Cancel If Power Off Timeouts Event On Surprise Removal Set RTS On Close Minimum Read Timeout msec Disable Modem Ctrl At Startup Minimum Write Timeout msec Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 TCFI IIl Manual Rev 2 1 386 304 0700 www daytona twintec com 5 2015 Page 18 PC LINK TCFI Ill OVERVIEW PC Link TCFI Ill software runs under Microsoft Windows XP Vista 7 The
70. llows more air flow and increases engine RPM A table sets the idle RPM command as a function of engine temperature This allows a higher idle RPM while the engine is cold Closed loop idle RPM control is only enabled when vehicle speed is zero and TPS is less than the idle TPS value usually 1 Under open loop conditions such as the motorcycle being driven while the engine is warming up IAC position is continually adjusted based on engine temperature and elapsed time since engine start When the engine is fully warmed up the system assumes that the IAC position will be close to a nominal value usually 30 Additional idle air IAC gt nominal IAC value is considered the same as increasing TPS since the effect on airflow is identical Under cold start conditions when the IAC value is high the system may be using the 2 5 or 5 TPS rows in the fuel tables even when the throttle is closed The nominal idle IAC value IAC steps once engine is fully warmed up and at stable idle condition is automatically sampled and updated This occurs after 8 seconds of stable idle whenever vehicle speed returns to zero while the motorcycle is operated The updated value is saved after engine shut down This feature eliminates the requirement to set the nominal idle IAC value as part of the tuning process and allows the system to automatically accommodate different throttle bodies For more detailed explanations of the AFR and idle RPM control loops
71. ming the TCFI module for a 1 2 revolution cranking delay This can be done by means of the PC Link TCFI III software SPARK KNOCK PROBLEMS WITH HIGH COMPRESSION ENGINES Spark knock problems may be encountered with high compression engines If engine parts were mixed and matched from different suppliers the actual compression ratio may differ substantially from the TCFI III Manual Rev 2 1 5 2015 Page 12 expected value You cannot estimate compression ratio with cranking compression tests as camshaft timing usually causes an erroneous low reading To accurately calculate compression ratio you must measure the combustion chamber volume and use the formula Compression Head cc Deck cc Cylinder Volume Ratio Head cc Deck cc The practical limit for compression ratio is about 10 5 1 to 11 1 when running 93 octane pump gas Any higher compression ratio will require retarding the ignition timing to the point where more power is lost from the retarded timing than is gained from the higher compression If spark knock is encountered during operation you can use the TCFI III Log software to download data and examine the operating conditions RPM and manifold pressure where spark knock occurred You can then make appropriate reductions to the ignition advance table Large displacement high compression engines are prone to spark knock at relatively low MAP values during throttle roll on You may need to reduce the igni
72. nded for most applications The nominal idle IAC value IAC steps once engine is fully warmed up and at stable idle condition is automatically sampled and updated Manual setting of the nominal idle IAC value may be required for some applications For more information on this subject please refer to the TCFI III Idle Tuning Tech Note Anti Stall IAC Mode for problem applications where occasional engine stalling occurs when the clutch is pulled in In anti stall IAC mode closed loop idle speed control is always active when engine RPM is below the target idle RPM This may cause an unexpected increase in idle RPM if the engine is inadvertently lugged down below the target idle RPM For more information on this subject please refer to the TCFI III Idle Tuning Tech Note Estimated Wheel HP at 6000 RPM enter a reasonable estimate in order for the TCFI to calculate the base injector pulse width Well tuned engines will develop about one horsepower per CID If the horsepower peak is below 6 000 RPM use the peak value If the estimated value is too low the engine will initially run lean and this may interfere with auto tuning PC Link TCFI Ill version 2 0 uses estimated rear wheel horsepower as measured by a chassis dyno in place of the estimated engine horsepower figure used in previous versions When opening older files or downloading setup data originally created with an earlier version re enter the estimated rear wheel hors
73. ndition Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 www daytona twintec com If the BLM values go below 80 or above 120 anytime during the warm up period the system is running out of adjustment range and the idle cells in the Alpha N fuel table should be edited before proceeding with further tuning Download the current setup with PC Link TCFI III software and use the Edit 3D Table Alpha N Table command to edit the idle cells in the Alpha N fuel table Depending on engine temperature IAC value and idle RPM the TCFI will be using the cells in the 750 1 000 1 250 and 1 500 RPM columns and the 096 2 596 IAC between 50 80 and 5 TPS IAC above 80 rows You can select all these cells right click the mouse and then use the Modify command on the pop up menu Add a percentage corresponding to the BLM error For example if the worst case BLM value noted was 120 add 20 fuel by entering 20 not 20 Likewise if the worst case BLM value was 80 subtract 20 fuel by entering 20 Remember to use the Save Table Edits to Buffer command after editing the table Then use the Edit 3D Table BLM Tables Reset BLM Tables command to reset all BLM values to 10096 Save the edited setup file to disk and upload it to the TCFI As mentioned above the IAC value should slowly go down as the engine reaches operating temperature The IAC value should drop to near the nominal value of 3
74. ng on page 8 for more details 21 Final checks Verify absence of spark knock during throttle roll on and wide open throttle acceleration Verify that the speedometer reading is accurate and that the turn signals cancel properly 2007 2011 models only verify proper operation of 6th gear indicator light If required operate the motorcycle at a steady speed around 50 MPH in 6th gear and then download data with TCFI III Log Use the gear ratio display function to determine the actual 6th gear ratio Use PC Link TCFI III software to download the current setup data enter the new 6 gear ratio into Module Parameters save the edited setup file to disk and upload it to the TCFI TUNING SUGGESTIONS You must be able to monitor engine parameters including AFR and RPM during the tuning process While you can use TCFI 111 Log software and a laptop PC for this purpose situations may arise where a mobile display system is required TCFI III View software allows you to use a Palm OS based handheld organizer PDA to view engine parameters This facilitates tuning and diagnostics You can view any three of the engine parameters that are logged by the TCFI system Check our website at www daytona twintec com for more information about TCFI III View including PDA and cable requirements Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 www daytona twintec com EDITING AND FILE OPERATIONS After ini
75. ntended to be an open system and uses the Component One Chart 7 0 3D charting control The adventurous user can experiment with the chart property pages by right clicking on the chart Almost any chart property can be changed Click on the Help button for more information If you corrupt the chart exit and restart PC Link TCFI Ill Data Export and Import by Means of Drag and Drop You might want to export or import 3D table data to or from another application such as Microsoft Excel Arrange the program windows so that both the source and destination are visible one on the left side of the screen and the other on the right side seems to work best You must be able to see the information you want to drag as well as the location where you want to drop it To export from PC Link Ill to Excel use the left mouse button to select a range of data on the spreadsheet grid Then move the mouse cursor to an edge around the selection Hold the left mouse button down and drag the selection into Excel Release the left mouse button on the top left cell in Excel When Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 www daytona twintec com 3500 4000 40 5000 5500 441 41 4 450 450 44 44 450 45 0 331 344 53 59 69 importing into PC Link III from Excel use the same procedure except that Excel requires dragging and dropping with the right mouse button EDITING 3D TA
76. oad data by using the Download Data From TCFI command on the Communications menu The program will display the module s firmware ID CREATING A NEW IGNITION ADVANCE TABLE Use the New Advance Table command on the Edit Edit 3D Table Advance Table menu A dialog box appears and allows you to enter initial timing and advance slope settings Settings close to 5 result in an advance table suitable for stock engines Use lower values for high compression engines Each time you click on Update the corresponding advance table is displayed You will find the New Advance Table command useful for generating an advance table that will serve as a starting point for further edits When you are ready to proceed with editing click on OK After you have edited the table you must use the Save Table Edits To Buffer command from the Edit menu to save your edits to buffer memory If you use the Close Table command from the Edit menu all your edits are lost Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 www daytona twintec com Figure 6 Creating a New Advance Table New Advance Table Initial Timing Advance Slope Editing Table Data You can edit table data using standard Windows copy and paste operations by selecting cells and then clicking the right mouse button to pop up the edit menu You can select cells by dragging the mouse with left button down Figure 7 Modify Command Modi
77. ontact our tech support for details The dimensions of the IAC pintle and idle air ports on currently available throttle bodies may not allow sufficient airflow for starting 120 CID and larger engines at low ambient temperatures In this case the customer must be instructed to use the following cold weather starting procedure set the run stop switch to run wait until the fuel pump stops running slightly open the throttle and then press the starter switch TCFI Ill Manual Rev 2 1 5 2015 Page 9 The stock starting system is inadequate for high displacement high compression engines For these applications you must install compression releases and upgrade the starter ring gear pinion and battery Based on customer feedback the best available starting system is the combination of a Tech Cycle 2 0 KW Tornado starter Rivera Engineering 84 tooth ring gear pinion set and Yuasa YuMicron CX battery THROTTLE BODY AND INTAKE RECOMMENDATIONS 95 CID or higher displacement engines will require an aftermarket throttle body and low restriction air cleaner for maximum performance We recommend a throttle body with at least 50 mm ID Smaller throttle bodies or modified stock throttle bodies will not allow sufficient air flow at high RPM This can be verified by examining MAP manifold pressure during a dyno run with TCFI III Log software Front cylinder fuel imbalance may become intolerable with large displacement engines unless a dual
78. operly align columns when printing advance tables The Monospace 821 BT font is included in the distribution media and automatically copied to your Windows Fonts folder during installation A backup copy is also placed in the program folder If you accidentally delete this font use the Install New Font command from the Fonts folder File menu The filename associated with Monospace 821 BT is monos ttf TCFI III Manual Rev 2 1 5 2015 Page 19 DOWNLOADING DATA The USB interface connects to the OE data link The OE data link uses a four terminal Deutsch connector that is usually found near the TCFI unit All models require installation of the green PC link jumper wire supplied with the TCFI kit between pin 9 of the Delphi connector that mates with the TCFI module and pin 1 of the OE diagnostic connector Refer to page 41 for details Turn the ignition key and engine run stop switches on to provide power to the TCFI unit Do not start the engine If the TCFI unit has been removed from the motorcycle you can do bench top programming by using an adapter harness P N TCFI ADAPT that includes a small 12 volt DC power supply COMI is used as the initial default port In most cases the USB interface will be assigned to a different COM port Refer to the USB Installation section on page 18 for details Use the Port Setup command on the Communications Menu to select the correct COM port The program will remember this selection Downl
79. or most applications and should not be changed without consulting tech support ET Based AFR Cold Start Enrichment Table This table consists of an AFR cold start multiplier percent units that is a function of engine temperature This table does double duty for hot soak enrichment Some of the engine temperature cells are highlighted in red These red cells correspond to invalid sensor readings In general the values in this table will be correct for most applications and should not be changed without consulting tech support TCFI III Manual Rev 2 1 5 2015 Page 25 Time Based Fuel Cold Start Enrichment Table This table consists of a fuel cold start multiplier percent units that is a function of elapsed time since engine start The overall fuel cold start enrichment is determined as follows calculated injector pulse width for each cylinder is multiplied by the time based fuel cold start enrichment and by the appropriate ET based front or rear cylinder cold start enrichment The overall fuel cold start enrichment is then added to the injector pulse width For example assume that the calculated injector pulse width is 4 msec and that the time and ET based fuel cold start enrichment values are 50 and 25 respectively The total injector pulse width is then 4 5 msec 0 5 x 0 25 x 4 0 4 0 The time based fuel cold start enrichment should always taper off from 100 at zero elapsed time and must reach 0 at the maximum value of el
80. ow Open P0152 Front Oxygen Sensor High or P0154 Front Oxygen Sensor Low Open These codes indicate a problem with the WEGO 1110 unit P0134 and or P0154 will be set if the WEGO signal connection white and blue wires or WEGO power is lost These codes may also be set if a Bosch sensor fails or becomes contaminated by leaded gasoline REINSTALLING THE DELPH CONTROLLER If you reinstall the Delphi controller turn the ignition key on and cycle the run stop switch before starting the engine This initializes the idle air control motor With the exception of models with OE oxygen TCFI III Manual Rev 2 1 5 2015 Page 14 sensors removal of the white and blue WEGO signal wires and green PC link jumper wire is not required For models with OE oxygen sensors you must remove the WEGO white and blue wires and reinstall the original oxygen sensor wires at pins 8 and 23 TROUBLESHOOTING FLOWCHART Follow the troubleshooting flowchart shown below Please note that the troubleshooting flowchart does not relate to incorrect setup or tuning issues with new installations Experience has shown that most units returned for warranty are OK and another problem such as user error including improper setup or tuning an intermittent wire harness connection or defective coil fuel injector or sensor is later identified TCFI III System Troubleshooting Flowchart STARTING POINT REPLACE TCFI WITH OE MODULE OR ANOTHER KNOWN GOOD MODULE
81. perating statistics and to control certain engine functions The term TCFI is used throughout this document as a generic term and refers to the new TCFI III version unless otherwise noted After TCFI III Log is launched the main screen appears blank You have multiple display options You can display real time engine data on an instrument panel type screen by using the View Real Time Data command on the View menu You can display and print data logged by the TCFI unit on a chart recorder type screen Data logged by the TCFI unit must be downloaded before it can be displayed by using the Download Logged Data From command on the Communications menu Once data has been downloaded it is automatically displayed on a chart recorder type screen You can save this data by using the Save File command from the File menu You can display a previously saved data file by first using the Open File command on the File menu and then using the View Chart command on the View menu You can also download view and print engine operating statistics and historical diagnostic codes by using the Download Statistics and Diagnostic Codes command from the Communications menu Please note that this data is not saved TCFI Log is only compatible with TCFI Ill units and cannot be used to download data or open files from earlier Gen 1 or Gen II TCFI units A sample data file Sample log is included in the program folder SOFTWARE INSTALLATION The
82. ro and 45 degrees You can shift the entire advance table up or down by holding the Shift key down while dragging any point The chart label box shows the shift in degrees When you release the mouse button the chart and spreadsheet grid values will be updated Response of the chart label box may be sluggish on slower systems due to the amount of data being updated After you have edited the table you must use the Save Table Edits To Buffer command from the Edit menu to save your edits to buffer memory If you use the Close Table command from the Edit menu all your edits are lost Editing Table Data You can edit table data using standard Windows copy and paste operations by selecting cells and then clicking the right mouse button to pop up the edit menu You can select cells by dragging the mouse with left button down You can also use the Modify command on the pop up menu When you enter a value the presence of optional sign or or percent characters affects the outcome of the Modify command as shown in Figure 7 Chart Operations You can rotate the 3D chart display for a better view of a particular region by dragging the mouse while holding both mouse buttons down TCFI III Manual Rev 2 1 5 2015 Page 21 Figure 8 Editing Advance Table Data Link TCFI II Fle Edt Communications AOD 6 9 KK Ue SURSSBRRRVSE 5 a P4 PC Link TCFI Ill is i
83. s for abnormal battery voltage less than 11 volts or greater than 16 5 volts sensor open circuit and sensor short circuit conditions A fault condition causes the status LEDs to blink at the slow rate CAUTION Racing gasoline containing lead will quickly degrade the sensors Under these conditions expected sensor life is less than 10 hours There is no warranty on sensors Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 TCFI IIl Manual Rev 2 1 386 304 0700 www daytona twintec com 5 2015 Page 44 WEGO IIID Troubleshooting Flowchart NOTE ALL TESTS PERFORMED STARTING WITH SENSORS IN FREE AIR DO STATUS LEDS SLOWLY BLINK WHEN POWER IS FIRST TURNED ON NO YES VERIFY 12V POWER ON RED WIRE DO STATUS LEDS CONTINUE SLOWLY VERIFY BLACK WIRES CONNECTED TO BLINKING 60 SECONDS AFTER POWER GROUND IS PROBLEM FIXED UP NO YES YES NO REPLACE WEGO DONE PERFORM FREE AIR CALIBRATION IS CALIBRATION SUCCESSFUL No vEs MEASURE VOLTAGE LEVEL ON RED REPLACE SENSOR S WIRE WITH DVM IS IT GREATER THAN IS PROBLEM FIXED 11 VOLTS NO YES YES NO REPLACE SENSOR S WEGO REQUIRES MINIMUM 11 REPLACE WEGO DONE IS PROBLEM FIXED VOLTS FIX UNDERLYING PROBLEM WITH VEHICLE ELECTRIC SYSTEM NO YES REPLACE WEGO DONE IS PROBLEM FIXED NO YES CALL TECH SUPPORT DONE Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 TCFI III Manual Rev 2 1 386 304 0700 www daytona twintec com 5 2015 Pag
84. splacement twintec com for available updates for the TCFI engines are given on page 9 accompanying PO based and 11 Use the Edit Basic Parameters command Make ocumentation any required changes such as estimated rear 3 Tech support If you have questions or encounter wheel horsepower injector flow rating refer to problems at any point during the installation Table 1 on page 9 and RPM limit You must set Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 TCFI III Manual Rev 2 1 5 2015 12 13 14 15 16 17 Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 the vehicle speed sensor VSS frequency for your model This affects soeedometer odometer scaling idle RPM control and turn signal cancellation Refer to pages 30 31 Do not change any other parameters or options unless there is a specific reason to do so Click OK when done Use the Save File command to save your initial setup file with an easily identifiable name refer to suggestions in the editing and file operations section on page 3 Turn the ignition key and run stop switch on Upload the setup data to the TCFI unit Turn the run stop switch off This initializes the idle air control IAC motor Start the TCFI III Log software Turn the run stop switch on but do not start the engine Use the View Idle TPS command on the View menu Idle throttle position sensor TPS volts are d
85. stock compression performance camshafts low restriction air cleaner and low restriction exhaust 386 304 0700 www daytona twintec com Page 16 TCFI III Manual Rev 2 1 5 2015 USB INTERFACE OVERVIEW The Twin Tec USB Interface P N USB INTF shown in Figure 4 is supplied as part of the system to provide PC connectivity The USB interface is compatible with Windows XP Vista 7 The USB Interface has a switch that selects the operating mode The TC88A And All Others switch position is used for communications with the system The unit comes with a connector that mates with the four terminal Deutsch data link connector located near the ECM Figure 4 USB Interface USB INTERFACE INSTALLATION The Twin Tec USB interface is based on the FTDI FT232R chip and drivers that allow the unit to emulate a standard Windows RS 232 COM port Updated Windows drivers installation instructions and troubleshooting tips are available on the FTDI website at www ftdichip com Additional information and troubleshooting tips can be found on the PC Link Tech FAQ on our website at www daytona twintec com A new USB driver that simplifies the installation process is available This installs as an executable file similar to other Windows programs The Windows Found New Hardware Wizard will then detect the USB device when it is first connected and automatically install the correct driver without the user having to browse out to
86. t and rear cylinder AFR values are displayed for all TCFI III units when the WEGO is installed FRONT BLM REAR BLM block learn multiplier main fuel table correction factor based on exhaust gas oxygen sensor feedback shown as percent value from 75 125 Separate front and rear cylinder BLM values are displayed IAC idle air control stepper motor position higher number means more idle air IAT intake air temperature ET engine cylinder head temperature FRONT INJ REAR INJ injector pulse width in milliseconds or duty cycle in percent FRONT ADV REAR ADV ignition advance in degrees BTDC BAT battery voltage USER IN user input displayed as digital on off signal On means that the input is active grounded USER OUT user output displayed as digital on off signal On means that the output is grounded TCFI Ill Manual Rev 2 1 5 2015 Page 37 Additional data is displayed at the lower right Log Interval the actual data logging interval in side of the screen This data includes seconds Diagnostic Code normally blank unless a You can clear the data within the TCFI by using diagnostic code is set Refer to page 14 for the Clear Data Buffer command from the details Communications menu Engine Status based on engine temperature and open closed loop AFR Figure 17 Data Logging Chart Display TCFI Ill Data Logging Program Chart Display 619 9 Sec VSS MPH
87. t the throttle blade s just barely open and do not bind when the engine is cold The IAC actuator and wire harness connections changed on 2006 and later models If you install an aftermarket throttle body on 2006 and later models and reuse the original equipment IAC actuator you will not encounter any problems If the aftermarket throttle body requires the earlier style actuator you must swap the wires going to pins A and C If you install the new 50mm Screamin Eagle throttle body P N 27623 05 on a 2001 2005 model you must swap the wires going to pins A and C on the IAC actuator Incorrect IAC connections will cause idle speed control to fail This will result in erratic engine operation and the ECM setting IAC related diagnostic codes IDLE TPS CHECK amp ADJUSTMENT Proper operation of the TCFI system depends on an accurate throttle position sensor TPS signal You can use TCFI Ill Log or TCFI View software to check the TPS sensor Read the Idle TPS Display section on page 36 before proceeding Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 www daytona twintec com Connect the USB interface cable and start II Log or TCFI Ill View software Turn the run stop switch on but do not start the engine For TCFI Ill Log use the View Idle TPS command on the View menu Idle TPS volts are displayed on the TPS bar graph gauge For TCFI III View select TPS volts display With the
88. ta logging file downloaded by means of TCFI III Log that shows the problem The data logging files are large and tend to be corrupted when attached to an email You must use an archiving program such as PKZIP or WinZip to compress the files prior to attaching them to an email You can send email to techsupport daytona twintec com Please make sure that you include your full name phone number complete information about the engine setup and a detailed description of the problem We suggest that you call us first to discuss the situation UPGRADES AND KNOWN ISSUES The TCFI controller can be upgraded in the field by the user Operating firmware is stored in FLASH memory and new firmware can easily be uploaded by means of the USB interface cable We suggest you periodically check our website at www daytona twintec com for upgrades to the TCFI firmware and accompanying PC based software As of the shipment date there are no known issues other than those listed below Possible firmware corruption during dyno test We suggest that you do not connect the USB interface to any PC running Dynojet WinPEP software Use a separate PC such as a laptop with isolated ground There appears to be a serial port conflict or noise issue from the Dynojet ignition pickup Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 www daytona twintec com ENGINE DIAGNOSTICS The TCFI version has extensive diagnostics
89. the threads may result in sensor damage Note that most automotive muffler shops are familiar with oxygen sensor weld nut installation on custom pipes Do not install the sensors until after the free air calibration procedure described in the following section Always use an anti seize lubricant such as Permatex 133A on the sensor threads Figure 21 Typical Sensor Installation CT AS A Em uu 5 Install the WEGO unit The WEGO is fully sealed and can be located near the unit You can secure the WEGO with Velcro tape strips or a few tie wraps on the wire harness 6 Connect the Bosch sensors to the 6 pin mating connectors on the WEGO wire harness The longer cable with yellow band is for sensor 1 front For additional protection and improved cosmetics use Techflex 1 1 4 Black Flexo Clean Cut FR expandable sleeving over the connectors available from www wirecare com 7 Referto Figure 22 Connect the two black WEGO wires to frame ground using the supplied ring terminal Try to use an existing wire harness ground location Do not extend the WEGO ground wires or ground the WEGO to the battery minus terminal or to the engine 8 Connect the red WEGO wire to switched 12 volt power You can usually find switched 12V power at an accessory fuse on the fuse block You can TCFI III Manual Rev 2 1 5 2015 Page 42 use the supplied fuse tap and 3 16 female crimp connector that mates with the TCFI
90. the trials Otherwise if the engine starts and runs ata AFR is lean try adding 10 20 fuel use the normal idle RPM the problem is insufficient fuel procedure explained on page 6 If this does not Try increasing the priming and cranking fuel values solve the problem please contact our tech support by 10 20 Download the current setup with PC for assistance Link TCFI software and use the Edit 2D Table 3 In some cases changes to the cold start ET pared Priming Fuer Tanie ange enrichment tables may be required The new Cranking Fuel Table commands Select all cells fi irmware and software support independent right click the mouse use the Modify command on th i engine temperature based front and rear cylinder e pop up menu and enter 10 not 10 dae cold start enrichment tables To allow viewing Remember to use the Save Table Edits to Buffer logging AFR data immediately after engine start command after editing each table Save the edited Ba i turn the ignition switch on but leave the run stop setup file to disk and upload it to the TCFI Retest e m and repeat if additional fuel seems to be required Stop positon Wait al least 1a P q seconds for the WEGO sensors to warm and 4 If larger fuel injectors were installed cranking and then start the engine Monitor engine data and Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 prim
91. the CDROM Before proceeding with installation shutdown any other applications that may be running For Windows Vista you must disable the User Account Control UAC during installation If you are not familiar with the UAC please refer to the Vista UAC Tech Note on our website s PC Link Tech FAQ for details 1 Make sure your USB interface is not connected to your PC 2 Insert the Twin Tec CDROM When the Twin Tec autorun menu appears click on Software Scroll Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 www daytona twintec com 7 NOTE You must set the switch to the correct position Use the TC88A And All Others settina for use with the TCFI svstem down and click on the USB Driver link When the File Download dialog box appears click on Run this program from its current location Ignore any security warnings and click on Yes to continue 3 After installation of the driver is complete connect the USB interface to the PC with the supplied USB cable The Windows Found New Hardware Wizard will appear and complete installation of the USB interface COM PORT CONFIGURATION After completing the installation steps outlined above you must configure the new COM port using Device Manager 1 Click Start Settings Control Panel System Hardware and then Device Manager Scroll down to Ports COM and LPT 2 The new USB Interface will as appear as USB Serial Port C
92. the Communications menu A status message is displayed when the upload process has been successfully completed If you attempt to upload data to anything other than a TCFI unit with correct firmware an error message will appear and the upload will be aborted TROUBLESHOOTING FLOWCHART Follow the troubleshooting flowchart shown on the following page Experience has shown that most communication problems are user error or PC compatibility issues Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 TCFI IIl Manual Rev 2 1 386 304 0700 www daytona twintec com 5 2015 Page 32 Software Communications Troubleshooting Flowchart STARTING POINT IS RS 232 TIMEOUT ERROR MESSAGE DISPLAYED WHEN ATTEMPTING DOWNLOAD OR UPLOAD FOR MISC PROBLEMS CALL TECH SUPPORT CYCLE ENGINE RUN STOP SWITCH VERIFY CHECK ENGINE LIGHT ILLUMINATED IS PROBLEM FIXED USE WINDOWS DEVICE MANAGER TO VERIFY THAT CORRECT COM PORT IS SELECTED IS PROBLEM FIXED CALL TECH SUPPORT Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 TCFI IIl Manual Rev 2 1 386 304 0700 www daytona twintec com 5 2015 Page 33 TCFI III LOG SOFTWARE OVERVIEW TCFI Log software runs under Microsoft Windows XP Vista 7 This software allows users of TCFI III fuel injection controllers to view real time engine data during dyno tuning download and display data logged by the unit including o
93. the TCFI requires PC Link TCFI IID software To access all competency in PC operation using logged data you must use version 1 4 or Microsoft Windows based programs higher TCFI Ill Log software and basic engine tuning and fuel Wapping n ond 7 TCFI Controller Read the TCFI installation LEVE MISI d cds Q gramdan instructions starting on page 41 and install the the Delphi fuel injection system and to TCFI unit Make sure you install the green PC link have access to basic test equipment jumper wire and factory service manuals 8 WEGO wide band exhaust gas oxygen sensor interface Read the WEGO installation instructions starting on page 42 install the WEGO unit and QUICK START SYSTEM perform the free air calibration described on page INSTALLATION AND SETUP 43 1 Check the exhaust system If you can insert a 9 Connect the USB interface cable between the broomstick through the mufflers you have the TCFI unit and your PC equivalent of open drag pipes and auto tuning will fail If applicable read the section about exhaust 16 bein viue dar considaration starting Om page Setup data files are provided in the program folder 2 Check for updates This tuning manual is for TCFI for typical engine applications Refer to Table 3 on III units with revision 3 3 or higher firmware Before page 16 for details Additional setup guidelines for proceeding check our website at www daytona aftermarket throttle bodies and larger di
94. the nearest 100 RPM Cranking Revs sets the number of engine revolutions before the ignitions fires the first spark Most Twin Cam engines will start best with a zero setting Please note that a hot engine may exhibit preignition and appear to start on the first revolution even if the Cranking Revs parameter is set to a non zero value Rear Cylinder Timing Offset you can set the value over a 5 to 5 degree range Leave the value at zero if you do not require a rear cylinder timing offset VSS Frequency this parameter sets the correct speedometer and odometer scaling An incorrect value will also affect idle RPM control and Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 www daytona twintec com Rear Cyl Timing Offset 5 to 5 VSS Frequency Hz at 100 KPH 6th Gear Ratio RPM KPH WEGO Warmup Time 0 60 sec Idle TPS 1 0 2 5 Nominal Idle IAC Steps 20 50 User Data 12007 Model 96 CID Setup Restore Defaults turn signal cancellation Please refer to the following section for more details 6 Gear Ratio applicable to 2007 2011 models only This parameter sets the RPM KPH ratio used to detect the transmission gear and illuminate the 6 gear light You can use the gear ratio display function in TCFI III Log software data logging chart display to determine the required value for a particular application For 2001 2006 models you can use the default v
95. throttle closed the TPS value must be within the range of 30 80 volts Some aftermarket throttle bodies are supplied with undercut screws that facilitate TPS sensor adjustment If you need to make an adjustment and you do not have the undercut screws you will have to enlarge the holes and then use 8 flat washers with the original screws For 2001 2005 TPS sensors carefully drill out or press out the brass bushings For 2006 and later TPS sensors cut the plastic alignment tab off the back of the sensor to allow adjustment Do not attempt to substitute the older style Marelli TPS sensor While the older style TPS sensor has screw slots that provide easy adjustment it has a different output characteristic ENGINE STARTING PROCEDURE With alpha N fuel control the proper engine starting procedure must be followed When the run stop switch is turned on the TCFI reads the TPS voltage to establish zero percent throttle position If the throttle is not fully closed at this point all subsequent fuel control will be incorrect The throttle body is affected by thermal expansion If the engine has cooled down or the motorcycle has sat overnight we suggest that you momentarily open and then release the throttle before turning the run stop switch on Make absolutely sure that the throttle is fully closed before turning the run stop switch on The throttle friction adjustment screw may prevent the throttle from fully closing We suggest th
96. tial setup the TCFI tuning process requires multiple edits of the engine tables and parameters using PC Link TCFI software Unless otherwise noted editing involves downloading the current setup data in the TCFI performing the required edits saving table edits to buffer memory saving the revised setup file to disk and then uploading it to the TCFI You should always print out any affected tables and parameters and save each revised file with a unique filename Use a filename that incorporates the customer name and a date code such as Chris 20090410a dat We suggest that you create a separate folder for all tuning files Keep detailed written notes on the changes you make and the associated filenames Make frequent backup copies onto removable media such as a USB Flash drive New customers with limited PC experience often become confused and have problems with simple Windows file management functions including the use of the Windows Explorer We regret that we cannot provide tech support for Windows related issues We suggest that you spend some time practicing with the PC Link TCFI Ill and TCFI IIl Log software including the Copy Paste and Modify commands on the right mouse button pop up menu OVERVIEW OF TCFI OPERATION The TCFI controls air fuel ratio AFR and idle RPM using individual control loops Each control loop can operate open loop without feedback correction or closed loop with feedback correction depending on condit
97. tion Wait at least 15 seconds for the WEGO sensors to warm up and then restart the engine and let it idle Monitor real time engine data and status with TCFI III Log software Verify that the AFR values do not exceed 15 0 before closed loop operation Allow the engine to idle until it reaches 110 C 230 F ET again Verify that the IAC position is in the range of 25 40 steps If not refer to the suggestions in the idle tuning section starting on page 6 Auto tuning The closed loop auto tuning process consists of operating the motorcycle through a wide range of loads and speeds while periodically monitoring progress using the PC Link TCFI III software Long rides at constant speed and load are of no value After 1 2 hours of engine operation download the current setup with PC Link TCFI 1 software and use the Edit Table BLM Tables Edit Front and Edit Rear BLM Table commands to examine the BLM tables Cells that are shaded red indicate that the system has run out of correction range Then use the Apply Front and Apply Rear BLM Table commands to automatically correct the Alpha N fuel table and front cylinder trim table This also resets all the BLM values back to 10096 and allows auto tuning to continue Save the edited setup file to disk and TCFI III Manual Rev 2 1 5 2015 upload it to the TCFI Continue this auto tuning process until most of the BLM cells remain in the 90 110 range Refer to the auto tuning section starti
98. tion advance throughout the entire MAP range 2007 AND LATER H D MODELS WITH CVO 110 CID ENGINE These models are equipped with an automatic compression release ACR system When the TCFI is installed in these models the ACR system must be modified Please refer to the TCFI III ACR System Tech Note on our website for details USER FUNCTIONS The TCFI user input on pin 16 can be connected for a stage RPM limit function as shown in Figure 2 The stage limit switch must be normally open You can use a microswitch attached to the clutch lever When the clutch lever is pulled in the switch contacts should close to activate the stage RPM limit Refer to the User Functions section on pages 31 32 for details on programming the stage RPM limit Figure 2 Stage Limit Switch Wiring Diagram STAGE LIMIT SWITCH OPERATION SWITCH OPEN MAXIMUM RPM LIMIT SWITCH CLOSED STAGE RPM LIMIT TCFI Ill PIN 16 USER INPUT TO GROUND Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 www daytona twintec com The TCFI user output on pin 22 can drive a standard automotive relay connected as shown in Figure 3 When the user output is active 12V power is applied to the load Refer to the User Functions section on pages 31 32 for details on programming the user output Figure 3 User Output Relay Wiring Diagram TO 12V TCFI Ill PIN 22 USER OUTPUT 12V STANDARD AUTOMOTIVE RELAY T
99. tirely on correct values in the Alpha N table The TCFI will enter closed loop AFR control mode after the WEGO warm up time nominal value of 30 seconds has elapsed To allow viewing and logging AFR data immediately after engine start turn the ignition switch on but leave the run stop switch in the stop position Wait at least 15 seconds for the WEGO sensors to warm up and then start the engine Monitor engine data and status with TCFI Ill Log or TCFI III View software Allow the engine to idle until it reaches normal operating temperature of 110 C or 230 F A fan should be used to direct cooling air on the engine to more realistically simulate actual warm up conditions and prevent the engine from overheating If the engine does not start or stalls please refer to the diagnostic tips at the end of this section on page 7 Monitor front and rear cylinder AFR and BLM engine temperature and IAC values Keep notes on your observations of these values After 30 seconds the system should be operating in closed loop and maintaining the desired idle AFR nominal value of 13 5 The BLM values should remain within the range of 80 120 The IAC value should slowly go down as the engine reaches operating temperature and requires less idle air BLM values below 100 indicate that the TCFI is removing fuel in closed loop to correct a rich condition BLM values above 100 indicate that the TCFI is adding fuel in closed loop to correct a lean co
100. tors have been replaced The TCFI will not operate correctly with the original injectors Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 www daytona twintec com Stock Delphi injectors are rated at 3 91 or 4 22 gm sec flow depending on model year We offer larger injectors rated at 6 0 gm sec fit 2001 2005 applications only Table 1 lists conservative horsepower limits based on injector size and type of throttle body You can use TCFI Log software to check the injector duty cycle at wide open throttle Table 1 Recommended Horsepower Limits Injector Size Siamesed Dual Runners Runners 90 HP Not available stock 2006 201 1 P N 27709 06A 4 22 gm sec 100 HP 135 HP stock 2001 2005 3 91 gm sec 4 89 gm sec 2006 110 HP Not available Screamin Eagle P N 27654 06 6 0 gm sec Twin 130 HP 195 HP Tec WARNING If you significantly exceed these horsepower limits the result may be a lean cylinder and possible engine damage at high RPM wide open throttle LARGE DISPLACEMENT ENGINES For large displacement engines and or higher flow injectors you can modify one of the 95 or 96 CID setup files by editing the module parameters and entering appropriate values for the estimated horsepower and injector flow rate The TCFI has been successfully applied to engines as large as the S amp S Cycle 145 Tribute Engines over 103 CID may require additional tuning procedures Please c
101. ttle sensor and thus require a different TPS transfer function The provided setup files have the proper TPS transfer function and you should never change these values unless given specific instructions from tech support Delta TPS Fuel Multiplier Table This table consists of a fuel multiplier percent units that is a function of delta throttle position Delta throttle position means change in throttle position Fuel multipliers greater than 100 for positive delta throttle position correspond to an acceleration enrichment similar effect to an accelerator pump on a carburetor Fuel multipliers less than 100 for a negative delta throttle position correspond to a deceleration enleanment useful for reducing exhaust back fire IAC Based TPS Adder Table This table consists of a throttle position factor corresponding to IAC position In an Alpha N fuel control IAC position must be considered A high IAC position high idle air flow is the same as opening the throttle In general the values in this table need only be edited if an aftermarket throttle body with significantly greater air flow is used In this case the table values should be reduced slightly Figure 10 Typical 2D Table degC 16 0 16 32 48 64 80 Ide RPM 1398 1320 1250 1172 1102 1000 1000 lt ET Based Priming Fuel Table This table consists of an injector pulse width that is a function of engine temperature The priming pulse occurs once on the init
102. vailable USB port PC Link TCFI III includes print commands that print table graphics and other engine parameters The program has been tested with Hewlett Packard laser and inkjet printers and Epson inkjet printers We recommend using a color inkjet printer SOFTWARE INSTALLATION The software is supplied on CDROM media or in the form of a compressed file downloaded from our website The installation process uses InstallShield This industry standard installer is based the new Microsoft Windows Installer service that greatly reduces potential problems such as version conflicts and allows for application self repair Before proceeding with installation shutdown any other applications that may be running For Windows Vista you must disable the User Account Control UAC during installation If you are not familiar with the UAC please refer to the Vista UAC Tech Note on our website s Tech FAQ for details Use the Windows Explorer or the Run command from the Windows Start Menu to launch setup exe in the PC Link folder on the CDROM or the setup exe file downloaded from our website InstallShield will install the software in an appropriate folder under Program Files Once InstallShield has completed the installation PC Link TCFI III will appear on the Windows Start Menu You can then launch it just as you would any other Windows program PC Link TCFI Ill requires the Monospace 821 BT fixed pitch printer font in order to pr
103. y BLM cells with value 0 This is useful in operating areas where exhaust reversion effects may cause incorrect sensor readings Note that most BLM tables will have the value 0 in cells corresponding to decel RPM above idle and closed throttle where reversion effects are most pronounced BLM update but not closed loop feedback is disabled in any BLM cells with value 1 Some BLM tables may have the value 1 in cells corresponding to idle 1 000 1 250 RPM and closed throttle Please refer to the TCFI Ill Idle Tuning Tech Note for more information on this subject After several hours of engine operation examine the BLM block learn multiplier tables If you see red cells on a BLM table you can use the corresponding Apply BLM Table command on the BLM Table submenu to automatically correct the Alpha N fuel table and front cylinder trim table After running the Apply BLM Table command the BLM table cells will return to 100 Please remember to upload the data back to the TCFI unit in order for the changes to take effect The Reset BLM Table command on the BLM Table submenu resets all BLM cells to 100 Editing Table Data You can edit table data using standard Windows copy and paste operations by selecting cells and then clicking the right mouse button to pop up the edit menu You can select cells by dragging the mouse with Daytona Twin Tec LLC 933 Beville Road Suite 101 H S Daytona FL 32119 386 304 0700 www daytona twint
104. y need to reduce the ignition advance throughout the entire MAP range CAUTION During auto tuning BLM values are only saved if the engine reaches 95 200 F and runs for at least 5 minutes This is set by warm engine temperature and engine warm up time parameters refer to page 29 In cold climate areas you may have to use a lower value for warm engine temperature FUEL INJECTOR SIZING Accepted engineering practice is to use the smallest possible injectors in terms of flow for best control at idle and part throttle The Delphi style single throttle body and similar aftermarket units with siamesed runners are subject to fuel imbalance problems between the front and rear cylinders When the fuel injector duty cycle exceeds 50 fuel will start being inducted into the wrong cylinder i e front injector spraying fuel while rear intake valve is still open The TCFI system cannot correct this problem Aftermarket throttle bodies with dual independent runners do not suffer from this problem and the fuel injectors can be run up to 80 duty cycle At high duty cycles fuel may puddle up in front of the intake valve but will ultimately be inducted into the correct cylinder WARNING H D has issued Service Bulletin M 1185 Most 2006 models have narrow 8 spray pattern injectors P N 27625 06 that cause poor cold start idle and cruise The replacement injectors P N 27709 06A have a 25 spray pattern Verify that the injec

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