SLC Pure Plus 2.1 User Manual
Contents
1. Wire Color Name Connects to Note 1 Black RPM Input RPM input tachometer or Optional low side of ignition coil 2 Green Analog Input 2 0 5 v output from sensor Optional 3 Brown Simulated Stock ECU if Lambda sensor Stops Stock ECU from Narrowband replaces stock Narrowband throwing out a Check Engine Output sensor Light when Narrowband sensor is not detected 4 Red EGT ve 14Point7 EGT Probe Red wire See note under Fig 1 3 3 5 Orange Analog Input 1 0 5 v output from sensor Optional 6 Linear Output Aftermarket ECU Datalogger Default Output O v 0 68 etc Lambda Linear to 5 v 1 36 Lambda equivalent to 10 20 AFR for gasoline fuel 7 White Map Sensor 14Point7 MAP Sensor White Optional Input wire 8 Blue EGT ve 14Point7 EGT Probe Blue See note under Fig 1 3 3 wire All sensors must be dedicated to SLC PP2 1 you cannot share a sensor between a gauge and SLC PP2 1 Fig 1 3 2 MAP Sensor Wiring Diagram Nylon Tube z d 12v aie dh N Filter White wire gt SLC PP2 1 Aux 1 cable White wire Black wire gt SLC PP2 1 Aux 2 cable Black wire Note Since there is only 1 Black wire on Aux 2 cable you may need to split the Black wire with your own wiring Fig 1 3 3 EGT Probe Wiring Diagram F Exhaust SLC PP2 1 Aux 1 cable Blue wire M SLC PP2 1 Aux 1 cable Red wire No2. Write Vout Settings button to download new Linear Voltage Output settings to SLC Pure Plus 2 1 This section allows you to adjust the Simulated Narrowband output In some SLC Pure Plus 2 1 installations the Lambda sensor will physically replace the stock narrowband sensor and the Simulated Narrowband output from SLC Pure Plus 2 1 is connected to the Narrowband Signal wire feeding your ECU Your ECU controls fuel enrichment of your engine at light engine loads based on the output of the Simulated Narrowband signal the ECU s goal is to maintain the engine at stoich to maximize efficiency and minimize pollution at light engine loads The default Lambda Switch Point is 1 Lambda at Lambda 1 the Simulated Narrowband Voltage is 0 45 v When your ECU sees 0 45 v it will believe that the engine is running stoich By shifting the switch point to below 1 Lambda your engine will run richer at light engine loads By shifting the switch point above 1 lambda your engine will run leaner at light engine loads Hit the Write NB Switch Point button to download a new Narrowband Switch Point to SLC Pure Plus 2 1 Page 19 This section allows you to adjust the RPM Pickup settings to match your engine s ignition configuration Table 5 6 1 RPM Multiplier Ignition Type of Cylinders SLC Config RPM Multiplier Coil on Plug Does not matter 0 5 Wasted Spark Does not matter 1 Distribu
3. 35 v a subsequent power cycle to SLC Pure Plus 2 1 will restore normal operation to the Linear Output Page 11 Quickly pressing the Faceplate Button will cycle the display parameter AFR EGT Boost Fluid Temperature Air Intake Temperature Fuel Pressue Oil Pressure and Datalog Status You must purchase compatible sensors from 14Point7 and correctly install the sensors to show corresponding parameters All sensors must be dedicated to SLC PP2 1 you cannot share a sensor between a gauge and SLC PP2 1 Only sensors sold by 14Point7 should be used using alternate sensors will void your warranty Before each parameter is displayed the name of the parameter will momentarily be shown Table 2 1 1 Display Name and Range Name Shown Parameter Name Range of Display Note E a III Air to Fuel Ratio 10 26 99 99 AFR range depends on the AFR conversion for gasoline the range is 10 26 99 99 Exhaust Gas Temperature O C 1200 C Requires calibration using the SLC Config software see section 5 10 Boost O PSI 43 5 PSI Faceplate will only display positive boost pressure Real time datalogging and datalog to Internal Memory will show Vacuum and Boost Fluid Temperature O C 150 C Air Intake Temperature O C 150 C Fuel Pressure O PSI 145 PSI Oil Pressure O PSI 145 PS Datalog Status 0 100
4. Note Since there is only 1 Black wire on Aux 2 cable you may need to split the Black wire with your own wiring Page 6 Fig 1 3 6 Fuel Pressure Sensor Wiring Diagram M M labelled To SLC PP2 1 Aux 2 Hl sic Pp2 1 Aux 2 cable Black Wire _ Black Wire Engine Block SLC PP2 1 Aux 2 cable Green Wire G labelled labelled Note Since there is only 1 Black wire on Aux 2 cable you may need to split the Black wire with your own wiring Fig 1 3 7 Oil Pressure Sensor Wiring Diagram Wk labelled To Engine Block o SLC PP2 1 Aux 2 cable Black Wire ro re PP2 1 Aux 2 cable Brown Wire Note Since there is only 1 Black wire on Aux 2 cable you may need to split the Black wire with your own wiring G labelled Page 7 Cars Equipped with Narrowband sensor and stock ECU Remove the Narrowband sensor and replace it with the wideband Lambda Sensor Your ECU will likely show a check Engine Light if it does not detect the presence of a narrowband signal Most of the time this can be fixed by routing the Simulated Narrowband output from SLC Pure Plus 2 1 to the Narrowband signal line to your stock ECU If your Narrowband sensor has a heater in some cases the ECU will also check the heater current if the Narrowband sensor s heater is disconnected the ECU may show a Check Engine Light This can be fixed by placing a 10
5. may cause the sensor to overheat and expose the Lambda sensor to high exhaust back pressure Both will result in erroneous Lambda AFR readings overheating the Lambda sensor will damage the sensor This is especially true for turbo and super charged applications You can monitor the temperature of the Lambda sensor using the Winlog software see section 6 if you notice that the Lambda sensor temperature is consistently above 750 C you should relocate the Lambda sensor farther away from your engine s exhaust port Installing the Lambda sensor too far from your engine s exhaust port may cause the following problems slow Lambda AFR response because it takes more time for the exhaust gases to travel a farther distance if the Lambda sensor is too close to your exhaust tip this will allow Free Air to mix with your exhaust gases and cause readings to be overly lean in some cases SLC Pure Plus 2 1 will not be able to supply enough power to the Lambda sensor s heater and the sensor will be too cool this will result in erroneous Lambda AFR readings Furthermore if the Lambda sensor is in an active exhaust stream while being too cool carbon can easily build up on the sensor and ruin it You can monitor the Lambda sensor temperature using the Winlog software see section 6 if you notice that the Lambda sensor temperature is consistently below 750 C you should relocate the Lambda sensor closer to your engine s exhaust port 1 5 Grounding Conside
6. 1 1 74 minutes EGT Boost Fluid Temperature Air Intake Temperature Fuel Pressure and Oil Pressure parameters are displayed using a simplified mathematical model For those metrics there will be a slight difference between the values displayed on the faceplate and Real Time datalogging Datalog to Internal Memory Page 12 SLC PP2 1 has enough memory for 2 9 hours of datalogging 25 samples per second Pressing and holding the faceplate button for 2 or more seconds will start stop datalogging to Internal Memory Fig 2 2 1 1 dL When datalogging to Internal Memory starts the display will momentarily show 1 dL Fig 2 2 2 1xxx While datalogging to Internal Memory is active cycling the display to Datalog Status will show 1xxx where 1 indicates that datalogging is active and xxx show the of Internal Memory filled with data from the current datlogging session For example Fig 2 2 2 means that datalogging to Internal Memory is active and that the memory is 88 full Fig 2 2 3 0 dL When datalogging to Internal Memory is stopped the display will momentarily show O dL Fig 2 2 4 Oxxx While datalogging to Internal Memory is non active cycling the display to Datalog Status will show Oxxx where 0 indicates that datalogging is non active and xxx show the of Internal Memory filled with data from the previous datalogging session
7. 2beta1 a txt F view Help Open Log CTRL O Open Graph CTRL G Save selection to new log Export Graph Image Exit ALT F4 File gt Open Log 2 My Recent Documents Desktop My Documents My Computer Browse to where the saved datalog is located and click Open Wy WinLogView 14point 1 02be File EE Help wl Fields CTRL F i Zoom In NUM Zoom Out NUM Zoom Out Full v Graph Mode Matrix Mode Large Toolbar View gt Fields Page 27 Graph Fields Available Fields Select the fields you want to display with the gt button In the X Axis Field you usually want to select Logtime Click Ok to display the data in graph form Page 28 14Point7 warrants this product to be free from defects for 2 years Sensors if purchased from 14Point7 carry no warranty whatsoever Warranty does not cover user error and abuse Warranty period is based on date of purchase if no proof of purchase date is provided warranty will be based on the Program Date label on the underside of the PCB In the event that neither proof of purchase date can be provided and the Program Date label is illegible or removed no warranty will be provided Warranty is transferrable so long as proof of original purchase date can be provided or Program Date label is legible 14Point7 is liable for damages only up to the purchase price of its products 14Point7 products should not be used on publi
8. For example Fig 2 2 4 means that datalogging to Internal Memory is non active and that the memory is 88 full Each time datalogging is active the current datalogging session overwrites the previous datalogging session Page 13 If SLC PP2 1 is power cycled SLC PP2 1 will not remember the of Internal Memory full however your datalog is safely stored in flash memory available for download to your PC through the SLC Config software When Internal Memory is full 100 datalogging to Internal Memory will automatically stop Page 14 If you have followed instructions up to this point for a simple setup in which you want to visually display AFR Boost EGT Fluid Temperature Air Intake Temperature Fuel Pressure Oil Pressure and or interface the Linear Output with an external system such as an ECU or datalogger you can stop here and enjoy your SLC Pure Plus 2 1 unit as is Your SLC Pure Plus 2 1 will be able to achieve 0 01 Lambda accuracy without any additional steps Continue on reading if you desire additional features such as Datalogging and Free Air Calibration Page 15 You will need to install 2 pieces of software SLC Config and Winlog SLC Config is a configuration utility for SLC lambda controllers Winlog is a datalogging and data visualization software For the most up to date software and documentation please visit http www 14point7 com Support php A video tutorial is available to guide you through the USB Driver Ins
9. Page 1 SLC PP2 1 f DIGITAL LAMBDA CONTROLLER SLC Pure Plus 2 1 User Manual Caution The Lambda sensor gets very hot be careful when handling it During installation do not insert the Aux 1 Power and Sensor cables into SLC Pure Plus 2 1 once your wiring is complete then insert the cables into SLC Pure Plus 2 1 Automotive upholstery is a fantastic static electricity generator inserting the cables only after wiring is complete will greatly reduce the chance of damage to the unit by static electricity While the Lambda sensor is in an active exhaust stream it must be connected and operated with SLC Pure Plus 2 1 at all times Carbon from an active exhaust can easily build up on an uncontrolled Lambda sensor and ruin it Lambda sensor life when used with leaded fuels is between 100 500 hrs The higher the metal content the shorter the life of the Lambda sensor Do not install SLC Pure Plus 2 1 in such a manner that the unit is powered before your engine is running An engine start can move condensation in your exhaust system to the Lambda sensor if the sensor is already heated this can cause thermal shock and cause the ceramic internals inside the sensor to crack and deform On some computers the device driver will only be valid for the USB port that was used for initial driver installation Plugging SLC Pure Plus 2 1 into a different USB port will prompt your Operating System to ask for a device driver again you may install th
10. W 100hm power resistor between the Heater ve and Heater ve pins on your Narrowband harness Alternatively you can leave just the heater portion of the Narrowband sensor connected to the Narrowband sensor harness and route the narrowband signal line to SLC Pure Plus 2 1 s Simulated Narrowband Output make sure the Narrowband signal line is physically disconnected from the Narrowband sensor Alternatively you may keep your Narrowband sensor connected to your ECU and use the All Others method Cars Equipped Narrowband sensor and aftermarket ECU Remove the narrowband sensor from your exhaust and replace it with the wideband Lambda Sensor Connect the Linear Output from SLC PP2 1 see Table 1 3 2 to the lambda input of your aftermarket ECU All Others All others require the welding of the supplied O2 bung to your exhaust system before the catalytic converter If your car is turbo charged weld the bung after the turbo exhaust outlet and before the catalytic converter Install the bung such that the sensor is within 90 degrees of vertical best is within 45 degrees of vertical This will reduce the chance of water condensation on the sensor Fig 1 4 1 LSU Sensor Angle lt 90 Deg ra E O Page 8 Distance from engine exhaust port Typically placing the lambda sensor where your stock oxygen sensor or about 1m from your engine s exhaust port will be fine Installing the Lambda sensor very close to your engine s exhaust port
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12. e driver again which will make the current USB port ok for SLC Pure Plus 2 1 it will not invalidate the driver install for any prior USB ports The proper procedure for downloading settings to SLC Pure Plus 2 1 from SLC Config is as follows 1 Download setting 2 Leave SLC Pure Plus 2 1 on for 5 seconds 3 Turn Power off 4 Wait 5 seconds 5 Turn Power On Failure to follow procedure may result in memory corruption and require a memory reset Page 2 Your SLC Pure Plus 2 1 package should contain the following items e SLC Pure Plus 2 1 unit e 4 Wire Power Cable e 6 wire Wideband O2 LSU Sensor Cable e 8 wire Auxiliary 1 Cable e 02 Bung e 2x fuse holders e 2x 250 mA fuse e 2x 5 Amp fuse If any item is missing please contact toalan 14Point7 com for replacement 2 Fuse holders 2x 250ma fuses and 2x 5A fuses are provided You only need 1 fuse of each type the extra is for replacement if required The fuse holders come with a single continuous wire connecting both ends of the fuse holder cut the wire at the midpoint Do this for both fuse holders Fig 1 2 1 Fuse Cut cut The fuse holders open easily by twisting and pulling observe that locking mechanism on the fuse holder is open before attempting to pull In one fuse holder insert a 250mA fuse The current rating of the fuse is etched on the metallic ends In the other fuse holder insert a 5A fuse System Power Connects to switched 12 v through th
13. e fuse holder with the 250ma fuse see section 1 3 Heater Power Connects to switched 12 v through the fuse holder with the 5A fuse see section 1 3 Page 3 Fig 1 3 1 Power Aux1 Aux2 and Sensor ANES GRIA Back of Unit LSU Con Power Con The Power cable has wire colors Red Black Green and White The Power cable plugs into the Power connector The Auxiliary 1 cable has wire colors Black Green Brown Red Orange Yellow White and Blue The Auxiliary 1 cable plugs into the Auxiliary 1 connector The Auxiliary 2 cable has wire colors Black White Red Green and Brown The Auxiliary 2 cable is soldered directly to SLC PP2 1 there is no connector The Sensor cable has connectors on both ends one end plugs into LSU Connector on SLC Pure Plus 2 1 the other end plugs into the Lambda Sensor Table 1 3 1 Power Connection Table Connector Wire Color Name Connects to Note Pin 1 Red System Power Switched 12 v through 250ma Fuse Use fuseholder 250ma Fuse 2 Black System Ground If you have a device connected to the Linear Output ground this point where the device is grounded Otherwise ground to where ECU is grounded 3 Blue LSU Heater Power Switched 12 v through 5A Fuse Use fuseholder 5A Fuse 4 Green LSU Heater Ground Ground to engine block or chassis Table 1 3 2 Auxiliary 1 Connection Table Page 4 Connector Pin
14. f the device using the Linear Output If you have no device using the Linear Output then System Ground should be grounded as close as possible to the ground of the device connected to the Analog inputs for datalogging If you have no devices connected the Analog Inputs then System Ground should be grounded close to your ECU ground LSU Heater Ground should be grounded far from where the System Ground is grounded usually the chassis or the engine block is a good choice 1 5 3 Verifying Good Ground This Section only applies if you have a device connected to the Linear Output Good ground is most critical in setups where the Linear Voltage Output is used SLC Pure Plus 2 1 has a method to verify the quality of your grounding By forcing the output to a specific voltage 2 35 v and looking at the AFR Lambda voltage read by the device connected to the Linear Output while your engine is under load you can verify that the Linear Output is accurate which is indicative that your grounds are good If Possible configure the device connected to the Linear Output with the AFR Lambda curve 10 AFR O v linear to 20 AFR 5 v or with the Lambda curve 0 68 Lambda O v linear to 1 36 Lambda 5 v e Install SLC Pure Plus 2 1 according to the prior sections e Install the Lambda sensor according to section 1 4 e Connect the Lambda sensor to SLC Pure Plus 2 1 via the supplied sensor cable e Install SLC Config and USB drivers according to Sect
15. instructions only touch upon very basic features to allow the user to quickly get started It is a good idea to watch this short Winlog tutorial video before continuing www 14Point7 com Support Software_Documentation Winlog SLC Tut1 wmv The following instructions will setup the SLC Pure Plus 2 1 Driver in Winlog IY Winlog 14point7 v1 04betat Click Add Select SLC PP2 1 Driver Version x xx then click ok i Winlog Config for SLC PP2 RPM multiplier AFR conversion EGT Calibration Accelerometer Acceleration Calibration Value Accelerometer Decceleration Calibration Value Accelerometer Left Turn Calibration Value ad Accelerometer Right Turn Calibration Value Select the correct serial port see section 4 1 Input the correct RPM Multiplier for your engine see section 5 6 Input the desired AFR Conversion see section 5 3 Input the EGT Calibration Value see section 5 10 Input the 4 Accelerometer Calibration Values see section 5 8 Click OK Configure Logging Device Settings Configure Logging Devices SLCPP2 Driver Version 1 00 I Auto Reconnect Disconnected Devices Reconnect Delay 10 Seconds OK Cancel Click OK IY WinLog 14point7 v1 04betat New Datalog Open Datalog New Dashboard Open Dashboard Save Dashboard As Exit File gt Open Dashboard Page 23 Page 24 4 My Recent Documents Desktop C My Documents y
16. ion 4 e Start your engine e Connect SLC Pure Plus 2 1 to your Laptop via the supplied USB cable e Run SLC Config according to Section 5 e Inthe Linear Voltage Output Test section of SLC Config click Force 2 35 v e Put normal load on your engine If the device connected to the Linear Output is configured with the correct AFR Lambda curve the AFR read by the device should always be 14 7 Lambda should always be 1 00 Variations of 0 1 AFR or 0 01 Lambda are acceptable If the device connected to the Linear Output is configured to read raw voltages the voltage read by the device should always be 2 35 v Variations of 0 08 v are acceptable Page 10 If the AFR Lambda Voltage read by the device connected to the Linear Output is consistently above or below 14 7 AFR 1 00 Lambda 2 35 v it is likely the problem is not grounding but with the configuration hardware connection etc of the device connected to the Linear Output If the AFR Lambda Voltage read by the device connected to the Linear Output has large fluctuations around 14 7 AFR 1 00 Lambda 2 35 v the problem is likely due to grounding suggest you confirm that the System Ground connection is clean well connected and grounded near where the device connected to the Linear Output is grounded move the LSU heater ground to another point farther from the System Ground and run the test again After the Linear Output has been forced to 2
17. p LPT I Communications Port COM1 wo Communications Port COM2 av Printer Port LPT1 AJ SLC_PP2 COM3 MR Processors amp SCSI and RAID controllers De 4 4 ee ee ee eee ee In the above example the correct ComPort is COM3 Page 16 On some computers the device driver will only be valid for the USB port that was used for initial driver installation Plugging SLC Pure Plus 2 1 into a different USB port will prompt your Operating System to ask for a device driver again you may install the driver again which will make the current USB port valid for SLC Pure Plus 2 1 it will not invalidate the driver install for any prior USB ports Page 17 The proper procedure for downloading settings to SLC Pure Plus 2 1 from SLC Config is as follows 1 Download setting 2 Leave SLC Pure Plus 2 1 on for 5 seconds 3 Turn Power off to SLC Pure Plus 2 1 4 Wait 5 seconds 5 Turn Power On to SLC Pure Plus 2 1 Failure to follow procedure may result in memory corruption and require a memory reset Symptoms of memory corruption e Linear Voltage Output is static regardless of exhaust Lambda e Simulated Narrowband output is static regardless of exhaust Lambda e Numeric Display on SLC Pure Plus 2 1 is static regardless of exhaust Lambda e Numeric Display on SLC Pure Plus 2 1 is blank or the refresh rate is too high or too low Memory corruption can be fixed by hitting the Reset SLC Memory button in the SLC Config soft
18. rations 1 5 1 When Grounding is important If SLC Pure Plus 2 1 does not need to output an external system via the Linear Output or need to input from an external system via the analog inputs then you do not have to worry too much about grounding points just make sure the System Ground is grounded near where your ECU is grounded and the LSU Heater Ground is grounded at a different point Interfacing the Simulated Narrowband Output to your ECU technically does require careful grounding but the narrowband signal is a very coarse signal because of that grounding is not generally an issue for the Simulated Narrowband Output Grounding is most critical when interfacing the Linear Output to a device such as an aftermarket ECU or datalogger because the Linear Output provides very fine representation of AFR Lambda and this information is usually used to manage fueling 1 5 2 Making Good Grounds Page 9 The System Ground is the ground for the SLC Pure Plus 2 1 s Electronics this ground carries low current lt 100ma and is the reference point that SLC Pure Plus 2 1 uses i e this is a very important ground The LSU Heater Ground is the ground for the heater inside the Lambda sensor this ground carries high current lamp 3 amp the LSU Heater Ground is not used as a reference point but only as a path for heater current i e it is not as important as System Ground System Ground should be grounded as close as possible to the ground o
19. s My Comeuter a Fie name Wirog Dash 1_00_SUC_PP2_1024 600 T z Ceol s MyNawak Fies of ype I WinLog 14point7 v1 04beta1 File Edit View Help Chart NOT LOGGING Warnings 0 If SLC Pure Plus 2 1 is connected to your PC via USB and the Comport is correctly set the dashboard should be updating with live data from SLC Pure Plus 2 1 Page 25 IS WinLog 14point7 v1 04be Open Datalog Open Last Datalog New Dashboard Open Dashboard Save Dashboard Save Dashboard As File gt New Datalog Winlog by default will automatically generate a filename based on time and date and save the datalog file to the Winlog installation directory you can change this in View gt Dash Configuration iw WinLog 14point7 v1 041 Mid Edit View Help New Datalog Stop Logging Open Datalog Open Last Datalog New Dashboard Open Dashboard Save Dashboard Save Dashboard As Exit File gt Stop Logging will stop datalogging to Hard Disk Page 26 WinlogView is a program to view datalogs saved from Winlog and datalogs downloaded from SLC Pure Plus 2 Internal Memory via SLC Config see section 5 11 WinlogView is a fully featured and powerful piece of software you should read the installed WinlogView user manual for a complete understanding of its capabilities The following WinlogView instructions only touch upon very basic features to allow the user to quickly get started Ww WinLogView 14point 1 0
20. tallation https groups google com forum category topic 14point7 jTP2010CIA4 SLC Pure Plus 2 1 cannot be powered by USB it must be powered from the Power cable USB Driver Installation Power on SLC Pure Plus 2 1 connect SLC Pure Plus 2 1 to your PC s USB port using the supplied USB cable Windows will notify you that it has detected a new device and ask you for the location of the driver The driver location is in the Driver SLC_PP2 1 directory of the SLC Config installation directory If you used the default installation directory the driver is located in C Program Files 14Point7 SLC_Config Driver SLC_PP2 1 ComPort Once the driver is correctly installed and SLC Pure Plus 2 1 is connected to the USB port of your PC Windows will assign a Communications Port Number ComPort to the device You will need to know the ComPort Windows has assigned to SLC Pure Plus 2 1 when using the SLC Config and Winlog software In Windows XP Vista 7 you can check in your Device Manager to find the correct ComPort Fig 4 1 1 Device Manager ComPort Device Manager File Action View Help e 6 Rm ATOALAN AD585121 E Acronis Devices ya Batteries 1 Computer amp Disk drives 2 Display adapters 3 DYD CD ROM drives Floppy disk controllers JB Floppy disk drives yg Human Interface Devices IDE ATA ATAPI controllers Keyboards 1 Mice and other pointing devices E9 Network adapters Uy Ports COM am
21. te Keep Red and Blue wires on the Aux 1 cable as short as possible i e try to run the EGT probe wires as close to the Aux 1 connector as possible EGT probe wires are made of a special material EGT Probe must be a k type thermocouple with an ungrounded junction using a grounded junction EGT probe will damage SLC Pure Plus 2 1 and void the warranty C Table 1 3 3 Auxiliary 2 Connection Table Page 5 Wire Color Name Connects to Note Black Aux 2 Ground Ground for MAP sensor Air Intake Optional Temperature sensor Oil Pressure sensor and Fuel Pressure sensor White Fluid Temperature Sensor 14Point7 Fluid Temperature Sensor Optional Input Red Air Intake Temperature 14Point7 Air Intake temperature Optional sensor input sensor Yellow Wire Green Fuel Pressure sensor input 14Point7 Fuel Pressure sensor Optional Brown Oil Pressure sensor input 14Point7 Oil Pressure sensor Optional All sensors must be dedicated to SLC PP2 1 you cannot share a sensor between a gauge and SLC PP2 1 Fig 1 3 4 Fluid Temperature Sensor Wiring Diagram Washer Nut turn nut to secure wire To Engine Block SLC PP2 1 Aux 2 cable White wire Note Copper colored end uses engine block as ground Fig 1 3 5 Air Intake Temperature Sensor Wiring Diagram To intake TE SLC PP2 1 Aux 2 cable Red Wire SLC PP2 1 Aux 2 cable Black Wire
22. tor 2 1 Distributor 3 0 667 Distributor 4 0 5 Distributor 5 0 4 Distributor 6 0 334 Distributor 7 0 286 Distributor 8 0 25 Distributor 9 0 222 Distributor 10 0 2 Distributor 11 0 182 Distributor 12 0 167 Distributor 13 0 154 Distributor 14 0 143 Distributor 15 0 133 Distributor 16 0 125 This section allows you to force the Linear Output to a static 2 35 v for the purpose of testing the quality of your ground wiring Refer to section 1 5 for more information Page 20 5 8 1 Free Air Calibration Free Air Calibration uses the known O2 concentration of Free Air 20 9 as a gas to calibrate a Lambda sensor SLC Pure Plus 2 1 with a sensor in good condition is able to achieve 0 01 Lambda accuracy without the need for Free Air Calibration A bad Free Air Calibration will cause inaccurate Lambda readings often the error will be small enough such that it is not obvious yet large enough to put your engine in jeopardy Therefore it is very important to correctly follow the instructions shown in the Free Air Calibration form Free Air Calibration Schedule Normally Aspirated Engine Calibrate once a year or every 40 000 miles whichever comes first Turbo Super Charged Engine Calibrate once every 6 months or every 20 000 miles whichever comes first Race Engine Calibrate every other race weekend Dynometer Calibrate once a week 5 8 2 Reset Calibration Value The Reset Calibration Value button
23. ware this will reset the memory onboard SLC Pure Plus 2 1 with safe default values After a memory reset all previous stored settings will be lost Specify the correct ComPort and hit the Query Device Button SLC Config will interrogate the connected USB device at the selected ComPort see section 4 1 and automatically unlock functionality specific to your SLC Pure Plus 2 1 model You must perform a Query Device before being able to change and adjust SLC Pure Plus 2 1 settings Page 18 Lambda is converted to Air to Fuel Ratio AFR by a multiplication factor AFR Lambda AFR Conversion Below is a table of Conversion Factors for various fuels Gasoline 14 7 LPG Propane 15 5 Methanol 6 4 Ethanol 9 0 CNG 17 2 Diesel 14 6 Hit the Write AFR Conv Settings button to download a new AFR Conversion setting to SLC Pure Plus 2 1 This section allows you to adjust the 0 5 v linear representation of AFR Lambda The linear voltage output from SLC Pure Plus 2 1 is typically connected to your datalogger or aftermarket ECU to convey the measured AFR Lambda of your exhaust gas to that device The default Voltage vs Lambda output is O v 0 68 Lambda linear to 5 v 1 36 Lambda for gasoline this is equivalent to O v 10 AFR linear to 5 v 20 AFR To change the Voltage vs Lambda output you must specify the Lambda Ov and the Lambda 5v all points in between will be automatically linearly interpolated Hit the
24. will reset the free Air calibration to a factory value the factory value reflects a Lambda sensor in perfect condition Page 21 EGT Calibration calibrates the attached Exhaust Gas Temperature Probe for increased accuracy It is important to correctly follow the instructions in the EGT Calibration form Once EGT calibration is complete the software will show the EGT Calibration Value you enter this value into the Winlog application in the Winlog Config form see section 6 1 Clicking Download Datalog From Internal Memory from the Internal Memory menu item will download the datalog session saved on Internal Memory onboard SLC Pure Plus 2 1 to your PC s hard disk The data is saved in CSV format with a comma separating each data field The data is easily readable by a spreadsheet program such as Microsoft Excel and a data visualizer such as WinlogView When using WinlogView to view datalogs downloaded from Internal Memory make sure you set the file filter to CSV Log Files csv to be able to see CSV files Page 22 Winlog is a third party Datalogging and Data Visualization program Winlog is not created by 14Point7 14Point7 provides a full and unrestricted copy of Winlog with every SLC Pure Plus 2 1 purchase Winlog is a fully featured and powerful piece of software you should read the installed Winlog user manual for a complete understanding of its capabilities The following Winlog
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