SCANMASTER 3
Contents
1. Malfunction Codes Code Number Description 13 O2 sensor 14 Coolant temp sensor high 15 Coolant temp sensor low 21 TPS sensor high 22 TPS sensor low 23 Air temp sensor low MAT 24 Vehicle speed sensor 25 Air temp sensor high MAT 31 Wastegate solenoid overboost 32 EGR 33 MAP sensor signal high 34 MAP sensor signal low 35 Idle speed error 42 EST circuit failure ignition module to ECM 43 ESC circuit failure knock sensor 44 Oxygen sensor lean 45 Oxygen sensor rich 51 Prom error chip or socket The manufacturers and sellers of the Scanmaster cannot be held responsible for any damages resulting from the use or misuse of the Scanmaster or information in this document Datalogging The Scanmaster can be connected to a laptop to record data using the software TunerPro V5 which can be downloaded from the website www tunerpro net in the download section It is free but donations are encouraged A serial data cable included with the Scanmaster connects the unit to a laptop The cable connector is for a serial port so if your laptop only has USB you will need an adapter Note that the logging cable is not a standard phone modular cable Contact TurboTweak for replacement parts After installing TunerPro a definition file will be necessary to properly communicate with the Scanmaster This definition file called an ADX file can be downloaded from the Turbo2. No Bin Selected No XDF Selected Site x File XDF View Compare Acquisition Tools Window Help AETAT sh OB aM rnum a 0 6 Then select how you want to display the data Go to menu item Acquisition and at the bottom of the menu are different ways to display the data 7 To record data or stop recording you can go to Acquisition then Start Stop Data Scan 8 When you are done recording it will ask you to name the file before saving 9 To replay records go to Acquisition then Load Log File and select the log file You will need to pick a way to display the data using the selections at the bottom of the Acquisition menu For example selecting Show Monitors will show you something like the example below You can right click on the screen to select what data you want to Monitors Ed Imported Mon X kPa RPM Time M S display There are many features of TunerPro that cannot be covered here so look though its help files and don t hesitate to ask questions You can go to www turbotweak com forum for support The manufacturers and sellers of the Scanmaster cannot be held responsible for any damages resulting from the use or misuse of the Scanmaster or information in this document 11
3. or steps from 00 00 is closed At idle warmed up in park normal is around 20 40 It will jump up higher when in drive It will also move around when pressing on the gas called the throttle follower function When you turn the engine off the IAC resets itself and will return to a higher number for startup When you turn the key on the next time it will be at that higher number until you start the car It will then creep down as the engine warms up Cross Counts CC Cross Counts Counter that keeps track of how many times the O2 reading crosses midpoint 450 500mv This counter starts at 0 and climbs until it hits 255 then starts at 0 again This can give you an idea of the condition of the O2 sensor In closed loop you would typically see this number climb around 10 20 numbers per frame each time the Scanmaster refreshes If the number is climbing slowly then you may need a new O2 sensor If you have a chip that uses open loop idle the cross counts will not change much at idle MAL Malfunction code display Injector Pulsewidth inJ Injector pulsewidth This is displaying the actual amount of time that the injectors are pulsing to squirt fuel It is displayed in milliseconds ms No real correct reading here It s just for monitoring purposes Spark Advance SP Spark Advance Displays ignition spark advance This is what the ECM is commanding and may not be actual advance if the distributor is out of adjustment
4. 90 150 bL Block Learn BLM Long term fuel trim 90 150 MPH Miles per hour Vehicle speed 0 255 CLt Coolant Temp Current coolant temperature 40 to 300 AtS Air Temp Sensor Current manifold air temperature 40 to 300 r Engine RPM RPM 0 6400 tPS Throttle Position Sensor Voltage reading from TPS 0 0 5 0 IAC Idle Air Control Commanded position of IAC motor 0 255 CC Cross Counts Activity of oxygen sensor 0 255 MAL Malfunction Code Stored malfunction codes inJ Injector Pulsewidth Injector pulsewidth in milliseconds SP Spark Advance Spark advance in degrees bdc Boost duty cycle Wastegate solenoid duty cycle in percent 0 0 99 9 Open or Closed Loop Status Decimal point in knock retard reading will blink for open loop or remain solid for closed loop Scanmaster Readings Explained Here are some short definitions for the Scanmaster readings Not every detail is covered but this is a good starting point 02 Oxygen sensor reading in millivolts Gives an indication of air fuel mixture but not terribly accurate A wideband O2 system is much more accurate Take readings with the engine warm At full throttle we re usually looking for anywhere in the 900 1000 area Leaner lower typically makes more power but may cause knock The typical target is in the mid 900 s When cruising the numbers should jump up and down anywhere from 000 900 Some chips utilize a lean cruise feature which will drop the O2 reading dow
5. Tweak website www turbotweak com forum in the download section You may need to register to download free Download the file and save it into the same folder as TunerPro 1 Connect the cable from the Scanmaster to laptop 2 Start TunerPro software 3 Go to menu item Acquisition then Load Definition File Browse to where the ADx file is and open it 4 Set up acquisition by selecting menu item Tools then Preferences Select the Data Acq tab and set up the area circled below 7 TunerPro Preferences General Colors Keyboard Default XDFs Custom Tools Data Acq Emulation Data Aquisition amp Logging Emulation aE peg Emulation Plug in Component se in Y Interface a niii TunerPro Emulator Interface hd Data Acq I O Plug in Component Configure Plug in Component Con e Plug in Component TunerPro Data Acquisition I O Interface vY figur 9 V Detect Hardware At Startup Upload Whole Tables l Configure Plug in Component V Load Last Data Acq Def at Start V Warn of ADX XDF Link Mismatch 7 Audible Emu Update Confirmation 7 Keep Editors Open After Update You may have to press the Configure Plug In Component button to set up the right COM port There may be a little trial and error with the COM port to find the one that works Hit OK when done 10 5 With the Scanmaster powered up you can press the Acquire Data button to connect WW TunerPro RT
6. User Manual Version 1 0 SCANMASTER 3 SCANMASTER 3 Mode oe Knock SYCLONE amp TYPHOON The Scanmaster is a portable scantool designed to monitor data that is retrieved from the vehicle s ECM engine control module Features e Data Monitoring o Monitor ECM and sensor data in real time e Code Clear o Clear malfunction codes from the ECM s memory e Serial output o Log data to a laptop PC through a serial port on the back of the unit USB adapter may be required e Peak Capture o At full throttle the peak knock retard and leanest O2 values are saved along with the respective vehicle speeds e Analog inputs o A3 5mm jack for connecting two 0 5 volt external signals which can be datalogged to a laptop Kit Contents 1 Scanmaster unit 2 External logging cable with serial adapter 3 Misc wiring connectors Available accessories 1 Serial to USB adapter 2 Optional analog input cable For Support On the web www turbotweak com forum go to the Scanmaster 3 forum You can go there to find out about any recent updates Installing the Scanmaster 1 Disconnect the battery negative cable under the hood 2 Mount the Scanmaster inside the car on the dashboard or any other convenient location 3 Connect the black wire to a good ground You can use a skinny male spade terminal to plug into pin A which is ground 4 Connect the red wire to a fused ignition power source One of the empty IGN terminals in
7. e chips this will stay at 128 BLM bL Block Learn Memory Long term fuel trim Works very similar to INT but this is the computer s way of remembering the fuel trim over a longer period There are 2 or more different BLM memory locations called cells that are accessed based on different load conditions The Scanmaster only displays the value of the currently used BLM cell Like the Integrator the default value is 128 0 We would like to see the BLM stay in the 118 138 range It s not the end of the world if it goes outside this range but it could indicate there is a problem somewhere MPH Vehicle speed in mile per hour Coolant Temp CLt Coolant temperature in degrees F Most guys change to a colder 160 stat to keep the engine cooler which helps eliminate knock This may allow you to run more boost Airtemp AtS Manifold air temperature in degrees F The sensor is located in the intake plenum RPM r Engine speed in revolutions per minute Idle speed depends on what is programmed in the chip but usually somewhere in the 700 850rpm area TPS Throttle position sensor voltage Take reading with key on engine off Full throttle position should typically be over 4 00 volts Idle position foot off gas should be around 50 80 normally This is not really adjustable on the SyTy s so if it s way off it might indicate a bad TPS sensor IAC Idle Air Control Position of the idle air motor in counts
8. h the MPH that they occurred The 6th decimal point to the right of the knock retard digits will be lit during recording The stored readings can be recalled anytime before the engine is turned off Recall Mode While in Default mode pressing the Recall button on the right of the knock retard display changes the Scanmaster to Recall mode In this mode any previously recorded O2 millivolt and knock retard readings will be displayed Pressing the Mode button and Recall at the same time displays the MPH values associated with the stored O2 and retard values Turning the engine off will erase all stored data Clearing Malfunction Codes To clear any malfunction codes stored in the ECM s memory 1 Turn key on and make sure the Scanmaster has connected with the ECM 2 Press the Mode button until the MAL parameter is displayed 3 Press and hold the Recall button until the Scanmaster resets 4 Any malfunction codes should be cleared Information Displayed on Scanmaster Display Description Note Range 02 Oxygen Sensor 02 in millivolts optional wideband AFR 000 999 KR Knock Retard Timing retard in degrees due to knock 0 0 25 6 MAP Manifold pressure Manifold absolute pressure in kPa 0 315 bSt Boost Actual Boost in PSI 0 0 30 0 AFr Air Fuel Ratio ECM Commanded AFR or Wideband AFR 0 0 20 0 bat Battery Volts Voltage from ignition 0 0 25 6 Int Integrator Short term fuel trim
9. n to 100 or less at certain times During idle depending on the chip it may jump up and down or it might stabilize above 800 if the chip utilizes open loop idle Knock Retard KR Knock retard in degrees When the computer senses knock it retards the timing to help eliminate it This reading tells you how much the computer retarded the timing giving you an indication of how bad the knock event was At full throttle we would like to see zero However sometimes you may see a couple degrees here and there on a downshift or when you first hit the gas If you see 2 3 degrees momentarily and it goes away it s probably ok If you continuously see more than 2 3 degrees let off the gas and figure out what s going on MAP Manifold Absolute Pressure Pressure reading from the MAP sensor At full throttle and around 14 15psi boost this would be around 200 kPa At idle in park you will typically see 30 35 kPa Note that just because you may see good readings here it does not necessarily mean the MAP sensor is good They can go slightly out of calibration and cause problems such as bad BLM readings or cruddy idle tip in stumbles etc Boost bSt Actual boost in PSI taken from the MAP sensor Anything under Opsi will read 0 it won t display vacuum A 2 bar MAP sensor will max out around 15psi and a 3 bar MAP will max around 30psi Due to variances in atmospheric pressure the boost reading may not match your boost gauge exac
10. ous engine sensors Each time you press Mode it will scroll through data until you get back to 02 and knock retard again You can also press Recall to return to O2 and knock Configuration Mode The following display parameters are configurable 1 Default O2 display stock O2 reading or wideband reading 2 Boost amp MAP display stock 2 bar MAP sensor or 3 bar MAP sensor 3 Optional analog input display wideband type AEM LC 1 etc Use this only if you have a wideband connected directly to the Scanmaster not wired to the ECM To enter Configuration Mode with the Scanmaster powered up hold the Mode button for 10 seconds Press the Mode button to scroll through menu of items Use the Recall button to change parameter Press Mode again twice to save the parameter To leave Configuration mode hold the Mode button for 5 seconds You will see the Scanmaster reset Configuration menu items 1 MAP 0 stock 2 bar 1 3 bar 2 Ad1 choose type of wideband if one is connected to the Scanmaster analog input 1 PLX or AEM Gauge 30 4100 2 LC1 3 AEM Inline amp AEM 30 5130 3 Ad2 not currently configured 4 02 0 show stock 02 s on main screen 1 show wideband O2 on main screen Record Mode While in Default mode if the TPS Throttle Position Sensor voltage exceeds roughly 3 volts the Scanmaster will monitor O2 and knock retard It will keep in its memory the highest knock retard reading and lowest O2 reading along wit
11. the fuse box works well You can install a male spade connector which will push into an IGN terminal 5 Connect the white wire to the serial data signal at the ALDL connector under the dash The signal is pin M bottom row far right You can use the included skinny male spade connector to push into the plug 6 Reconnect the battery and test the Scanmaster n Fi H mM l ALDL Connector pin M Front View SCANMASTER 3 IC TI il f L mi Ld K k Record Open Closed Indicator Loop Status Rear View Datalogging Port 3 5mm Analog Input Port The manufacturers and sellers of the Scanmaster cannot be held responsible for any damages resulting from the use or misuse of the Scanmaster or information in this document Operating Instructions Power Up On initial key on the Scanmaster version number will be displayed If no data is received the Scanmaster will turn itself back off Once it has synchronized with the ECM the display will change to 450 0 0 O2 millivolts and knock retard Default Mode After the Scanmaster has synchronized with the ECM it will enter Default mode On the left side of the display you will see O2 millivolt readings from the engine s oxygen sensor On the right side it will display degrees of knock retard which correlates with how bad the car is knocking detonating Pressing the Mode button to the left of the display digits selects other data from vari
12. tly Ait Fuel Ratio AFr Air Fuel Ratio For a stock chip this will display what A F the ECM is trying to command It s not always what you actually end up with For some newer chips they are set up to display the A F from a wideband O2 connected to the ECM So this reading may show the wideband A F instead of the ECM commanded A F Typically at idle you might see an A F of 13 0 to 15 0 depending on the chip etc Cruising is usually in the 14 0 15 5 range and full throttle around 11 0 12 0 All of this can depend on how the chip is tuned and many other factors Battery bat System voltage as read by the computer from the ignition switch It would be ideal to have this above 13 5 volts most of the time but some cars do drift down closer to 13 0 volts at times Low voltage can reduce the output of your fuel pump INT Integrator Short term fuel trim Default number is 128 which is 0 When higher than 128 the computer is adding fuel and less than 128 the computer is subtracting fuel This number changes rapidly when operating in closed loop as the computer is constantly adding or subtracting fuel based on input from the O2 sensor The computer is trying to keep the air fuel mixture as close to 14 7 1 as possible for emissions purposes This number will be moving around a lot between 118 and 138 or so Don t pay too much attention to it in most cases BLM is more important When in open loop during cold start or idle on som
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