Manual Version 1.02 MAF Translator Gen-II version 1.02
Contents
1. e No Aux Log Reads only voltage Log EGT requires adapter Log 2 Bar calculates and logs MAP pressure from the aux signal Log 3 Bar calculates and logs MAP pressure from the aux signal Log 3 5 Bar calculates and logs MAP pressure from the aux signal Log 5 Bar calculates and logs MAP pressure from the aux signal MAF Translator Gen II User Manual 10 V Out1 mode Select function of Volt out 1 from the following list V Out2 mode Select function of Volt out 2 from the following list e Use setpoint Use setpoint setting to output desired voltage e Spark contrl For 1G DSM and Buick Turbo cars with proper chips e Volt MAF outputs voltage signal of MAF Out Setup Main Scale adjusts the entire range by the same V Outl Set Setpoint for V Outl V Out2 Set Setpoint for V Out2 Afterstart Enrichment for the first few minutes of engine run time Lo Load Pt Load for the Lo Load User tunes KPA Mid Load Pt Load for the Mid Load User tunes KPA Hi Load Pt Load for the Hi Load User tunes KPA F Out Max set for the maximum frequency that will be sent out the MAF output Can be used to prevent fuel cut or intentionally lean out the top end Set to 0 to disable frequency limiting MAFLim TPS TPS value below which MAF Flow is limited to the below settings MAF Limit When TPS is below the MAFLimTPS MAF flow is limited to this This helps reduce decel richness MAF Krpm Second limiting factor This setting multi2. select the AF Lo page by holding PAGE and using Up A or Down W to select the Airflow Low page Then hold the RANGE key and use the Up A and Down Y buttons to select the RPM range that s closest to idle speed Then use the Up A or Down W buttons alone to adjust the setting The Config page is used to configure the unit for a specific kind of car and airflow mode Prior to version 1 02 the PAGE button needed to be held for MAF Translator Gen II User Manual 6 10 seconds to enable access to the Config page This is no longer necessary and the Config page is accessed in the same manner as all of the other pages MAF Translator Gen II Pages Use this page to set the operating mode for your specific vehicle Config Select Set the unit for the vehicle and sensors connected System Settings Settings related to the selected configurations AF Low Low load AF tune vs RPM AF Mid Mid load AF tune vs RPM AF Hi High load AF tune vs RPM MAF Sensor Tune User AF tune vs MAF flow AFR Tracking Control how the unit uses wideband feedback at WOT Aux Trig User AF tune that is activated when the Window Switch output is activated This adjustment is only applied to the high load AF tune Sensor Monitor Display operating and tuning parameters Spark WOT Adjust WOT Wide Open Throttle spark advance not all vehicles Spark Aux Adjust WOT Wide Open Throttle spark advance when the window switch is activated not
3. all vehicles Window Switch The Aux output 12volts 100ma is activated when the settings are all true and the delay time expires MAF Translator Gen II User Manual s MAF Translator Gen II Setup The vehicle can be eguipped with a larger high performance MAF than was originally installed The new MAF is installed and wired to the MAF input wire yellow Configure the MAF Translator Gen I MAF Input to match the sensor installed on the vehicle The MAF Output mode is set to match the vehicle and ECU ECM Frequency MAF signals are sent on the Frequency Out wire yellow voltage MAF signals will be sent on either of volt out wires brown or gray Be sure to configure the volt out mode for Volt MAF Some vehicles have MAF sensors with other functions or signals These other signals are typically Barometric pressure and Air Temperature These MAF sensors are actually Air Volume sensors and the ECU requires the temperature and pressure in order to calculate the airflow mass When using a true MAF sensor the air temp and baro signals must be kept constant to prevent double compensation These other sensors can be simulated by the MAF Translator Gen II using the V Out I and V Out 2 signals Set the V out 1 and 2 mode to Use Setpoint in the Config page and set the output voltages to normal levels in the Setup page Frequency or Voltage MAF MAF Translator RPM gt Throttle Position TPS Gen ll Voltage out
4. Ne URRANSATOR Sean Il User Manual mac oh n 1 02 MAF Translator ae II v n 1 02 Table of Contents Kit ConfehfsSzu asna u kp Nap uu n Sadu odb n a us 3 Available Accessories ANd Options 3 Proin tabard sein escent SVA l de a 3 Main Airflow MOd eS u a A y u Wu Sa e 4 Installat on Derails ou ua aus uQ aeons 4 TASCA AION u A w KOK a Snes AE n OR 6 Using the Keypad 6 MAF Translator Genel PAS tcccisccsiiscsscscccvicsensanstiseatinsatviscssteasdtsshessseotes 7 MAF Translator Gen II Setup 8 Standard Connections enren iin aa aa u u deca n t 9 Parameter setting details for all pages 10 Tuning with the MAF Translator Gen II 14 Open Loop Vs Closed LOOD suyasqa kaywaakawaikaaqunpaqaawas qawawaq 15 AFR Track u S86 o W Wu aaa Su y 16 G IOSSQPYYV S O usai qa eis a Ania ane 17 MAF Translator Gen II Harness Connector Details 18 MAF Translator Gen II User Manual 2 Kit Contents The MAF Translator Gen II kit is shipped with the following items e MAF Translator Gen II unit e Standard splice harness 10 pin e Standard splice harness 4 pin only 2 wires installed e Spli
5. ad refers to how hard the engine is working at a certain RPM Low load means light throttle operation idle and steady speed driving Mid load refers to easy acceleration at moderate throttle High load refers to heavy throttle acceleration The AFR tuning is the sum of the Mainscale low mid hi aux User Tune and MAF Sensor tune settings This total can be viewed on the Sensor Monitor page as UT User Tune Adjust the Mainscale initially for the best compromise between idle and part throttle driving This sets the tune close Then use the low load page to adjust the tune at idle and light throttle driving The mid load adjustments should be set for proper AFR for moderate acceleration The mid load settings at 800 to 1200 RPM also affect tip in smoothness Hi load adjustments are used to adjust the AFR for WOT operation Open Loop vs Closed Loop Modern engine control systems operate in closed loop during part throttle operation The ECU measures the signal from the Oxygen Sensor mounted in the exhaust system and makes internal fuel delivery corrections to maintain 14 7 1 AFR Adjusting the MAF Translator Gen II when the ECU is operating closed loop will not affect the AFR since the ECU will re correct back to 14 7 1 This effect can be seen by monitoring the ECU controlled variables using a Scan Tool or Datalogger Tuning part throttle closed loop operation is predominantly adjusting for consistent trim or BLM values Durin
6. ark Adv WOT trig The Spark advance programmed into this page will be used instead of the WOT Spark if the Window Switch is activated DSMChips equipped cars with this feature activated and Buick GN s running the Extender Pro chips only Window Switch The unit can be configured to energize the aux output 12 volts 100 ma max when the input conditions are satisfied When activated the other AUX triggered modes for AFR control and spark advance are also triggered Min TPS TPS must be above this to enable the output Max TPS TPS must be below this to enable the output Min Aux Aux input must be above this to enable the output Max Aux Aux input must be below this to enable the output Min RPM RPM must be above this to enable the output Max RPM RPM must be below this to enable the output Delay Time once all the above settings are true this time must elapse before the output and aux functions will activate 0 2 50 sec Tuning with the MAF Translator Gen II Generally once the MAF Translator Gen II is properly configured the engine should start and run Then the next step is tuning Tuning is the MAF Translator Gen II User Manual 14 term used to describe adjusting the fuel delivery and spark advance as well as other items for best operation of the engine and vehicle Tuning is accomplished using the MAF Translator Gen II keypad Air Fuel ratio AFR is adjusted in the low mid high load tuning pages Lo
7. ce and tap connectors e Manual Available Accessories and Options e Various MAF wiring adapters Laptop logging and tuning cable kit EGT thermocouple interface Wideband AFR sensor and interface LC 1 Accessory power pack offline power supply 120VAC Introduction The MAF Translator Gen II is a powerful electronic module that allows the user to tune the engine performance of a modern fuel injected vehicle The unit is configurable for many different types of vehicles Using its various operational modes the user can adjust fuel delivery to extract more performance from their vehicles engine Warning The MAF Translator Gen II is a powerful tool for adjusting the operation of the engine It is possible to mis adjust the settings and cause damage to the engine The user must read and understand this entire User Guide before attempting to install and use the MAF Translator Gen II Adjustments should be made in small increments with continuous testing to ensure the engine is operating within its mechanical limits MAF Translator Gen II User Manual 3 The primary function of the MAF Translator Gen II is to allow the user to adjust the air fuel ratio of their engine This is accomplished by adjusting the amount of airflow the Engine Computer Module ECM or Engine Control Unit ECU perceives is entering the engine If the ECM ECU senses less airflow is entering the engine it will command less fuel be injected into the engine th
8. er to this guide http www mmxpress com technical connections htm MAF Translator Gen II User Manual 5 Installation If upgrading the MAF sensor remove the vehicle s original MAF and install the upgraded MAF If a plug and play harness is available follow the instructions included with it Otherwise wire the new MAF such that the signals use the original vehicle wiring Install the MAF Translator Gen II wiring splicing in to the MAF signal wire so the MAF Translator Gen II can alter its signal If the original MAF had extra signals wire the analog outputs to those ECU wires so the MAF Translator Gen II can generate those signals Tap the TPS and RPM signals Using the Keypad The MAF Translator Gen II is equipped with a 4 key keypad and LCD to allow the user to make tuning adjustments to the unit without needing a laptop computer or other external device Most tunable parameters are accessible from the keypad There are 3 main sets of data that are manipulated with the keypad page range and setting The page is selected by holding the PAGE key then pressing either Up A or Down W to select the desired page The page description is displayed while PAGE is depressed On any page hold the RANGE key and use the Up A and Down W buttons to select the range to be adjusted Use the Up A and Down W by themselves change the setting of that range For example to adjust the airflow and consequentially the air fuel ratio at idle
9. g warm up and WOT operation the ECU operates in open loop mode and tuning changes directly affect the AFR Refer to the technical documentation specific to your vehicle for more details MAF Translator Gen II User Manual 15 AFR Tracking The MAF Translator Gen II can control WOT AFR to a desired setting using feedback from a wideband AFR sensing device Install the wideband sensor in the exhaust following the manufacturer s instructions Connect the MAF Translator Gen II wideband O2 input to the analog output of the wideband unit Connect the wideband O2 sensing ground to the wideband ground use the analog ground if the wideband has one or connect to the wideband main ground close to the unit The wideband O2 sensing ground must be connected or the wideband signal will not be measured correctly The wideband input on the MAF Translator Gen II is a differential input and measures the difference between the input and the sensing ground Set the Wideband O2 in the Config page to match the wideband unit installed Setup or program the wideband unit if required When the wideband unit is installed and operating the analog voltage can be monitored on the O2 parameter of the Sensor Monitor page and the AFR is also viewable Ensure the AFR displayed matches the wideband unit The AFR tracking page is adjusted for WOT AFR control as follows Min TPS TPS above which the AFR tracking is enabled Set this high enough to ensure the ECU
10. or Displays various sensor and system signal values Up A and Down Y buttons select the upper display Holding the range button while pressing the Up A and Down W buttons select the bottom display RPM Engine RPM Load Calculated engine load MAP or scaled TPS 0 320 KPA AFL In Airflow from the MAF sensor Grams sec Vit In Voltage of the MAF input Volt MAFs only Hz In Frequency of the MAF input Hz Frequency MAFs only Hz Out Frequency of the MAF output Hz UserTn User Tune the total of the tune and mainscale TPS V Throttle Position Sensor volts O2 V Voltage of the O2 input volts AftrSt Afterstart enrichment 100 no afterstart AFR Air Fuel Ratio WB Corr Correction used by AFR Tracking 100 no correction AFR Des Desired AFR used by AFR tracking Sprk Commanded WOT spark advance Aux V Voltage of the Aux input volts EGT Exhaust Gas Temp use adapter to connect to Aux in F Batt V Voltage at power input to the unit volts MAF Translator Gen II User Manual A Spark Adv WOT At each RPM point the Spark advance that is programmed is what the vehicle ECU will run once boost is over approximately 6 psi This feature only works on vehicles specifically set up for Remote Spark Advance Control Currently this is only DSMChips equipped cars with this feature activated and Buick GN s running the Extender Pro chips Sp
11. plied by RPM 1000 is added to the MAF Limit and the sum becomes the max allowable MAF Flow when TPS is less than MAFLimTPS Idle Flow When the MAF reading is below this the MAF reading is filtered or smoothed to help improve idle in cars wit turbulent idle airflow Idle Filt When the MAF reading is below Idle Flow the MAF reading is filtered using this factor Adjusts 0 2 50 lower numbers are filtered more heavily Do not set this too low or the enging may not run properly MAF Translator Gen II User Manual 1 AF TrDelay Adjustable delay of 0 25 5 seconds that AFR tracking waits after enabled before it begins to correct AFR Tracking The AFR Tracking page is used to control how the MAF Translator Gen II self adjusts to maintain a desired AFR at WOT The MAF Translator Gen II does not self tune but will correct its output while at WOT See the separate section on AFR Tracking MAF Sensor Tune The MAF Sensor Tune setting is added to the regular system tune value It is adjusted relative to MAF flow Aux Triggered At each RPM point the set tune percent is added to the High Load user tune when the Window Switch is activated Tune High User tune values load points are determined in the Setup Tune Mid page These settings are blended between RPM and load Tune Low points and added to the System Scale Air Temp and Aux Trigger settings MAF Translator Gen II User Manual 12 Sensor Monit
12. puts if reguired MAF Translator Gen II User Manual 8 Standard Connections i puna zo pueqepyy nano Ausnbaj S p Indno xny m T Bu6Bo Jo JeBBu xny N ndul ZO puegepM L IndinO Bojeuy o z nang Dopey Indu SdL feuBis yor S indu dH aio gjoyu nba ndu HYN O punoio e UOHIUBI UM uo SHOA Zl MAF Translator Gen II User Manual Parameter setting details for all pages Config MAF In Select function and scaling of MAF output Select from list of available sensor types MAF Out Select function and scaling of MAF output Select from list of available scalings RPM Engine Set to the number of cylinders of the engine exception 96 LT1 4 cylinder Displacement Displacement in Liters Used to calculate Engine Load Load Source Determines the method used to determine engine load Engine load is used to determine which of the High Mid or Low load tune settings are used Selections are MAF RPM scaled in KPA TPS 320 5 volts or a MAP sensor connected to the Aux input Wideband O2 Select scaling of wideband input from the following list Innovate LC1 Innovate LM1 AEM Gauge AFM 1 other 0 volts 10 1 5 volt 20 1 Tech Edge 2B02 Wideband Zeitronix ZT2 Wideband Dynojet Wideband Commander 0 5 volts 10 1 18 1 AEM interface non gauge unit DIY WB Aux Log Mode Determines logging function of Aux input wire
13. t When the default settings have been restored the unit will display All data Reset Glossary AFR ae Parta en ob ar Air Fuel Ratio WOT cae ties nn st trameek oba oka Wide Open Throttle ECU pastel canes JE OVO PUN Engine Control Unit BOM 22222 se OR E Engine Control Module EPS sss ld a zi ss idoly Throttle Position Sensor MAE 22 oe a a e a eae no Mass Airflow Sensor REM partene rear net a Revolutions Per Minute O kA aen naaa PO User Tune OEM o zada va e an Original Eguipment Manufacturer MAF Translator Gen II User Manual 17 MAF Translator Gen II Harness Connector Details 1 1 afefe zfe Main 10 pin Harness 109 8 7 65 54 3 21 Orange O2Wideband input 2 Purple O2Wwideband sensing ground 3 Blue TPS input 4 Green MAF Freguency signal output 5 Pink 12 volts igniion power 6 Brown Voltage signal output 1 7 Gray Voltage signal output 2 8 White RPM signal input 9 Yellow MAF Freguency signal input 10 Black Ground Aux 4 pin Harness 4 3 21 1 Not used 2 Brown Window switch trigger output 3 Not used 4 Purple Aux input MAF Translator Gen II User Manual 18
14. to the pink wire at M5 Ground at M10 In this manual TAP means to connect to a harness wire without cutting it Splice means to cut a harness wire and connect MAF Translator Gen II wires to the cut ends If a connection diagram specific to MAF Translator Gen II User Manual S your vehicle is not contained in the kit contact your distributor for a diagram Wire Splicing and Tapping information The MAF Translator Gen II is installed by connecting wires into the vehicle s wiring harness Good connections are absolutely necessary for proper reliable operation A loose or intermittent connection could cause improper fuel delivery at full throttle resulting in engine damage Squeeze style tap connectors are included in the kit due to their popularity but are not the most reliable means of connection To use the squeeze style properly they must be installed firmly Regular slip joint pliers are best for this If there is doubt about the users ability to install the squeeze taps properly or the wiring area is subject to vibration soldering the connections is recommended The pink spade connectors included in the kit are of the best quality and will provide good reliability when properly crimped Inexpensive crimpers may not crimp firmly enough Tug on the crimped connection to ensure there is no looseness and the wire does not pull out When in doubt solder the connections For additional details on soldering the connections ref
15. us making the Air Fuel ratio leaner If the airflow signal is reduced by 1 the resultant fuel delivery will be less by 1 For example an engine is consuming 100 grams of air per second and the ECU is delivering fuel for 12 1 Air Fuel Ratio AFR If the airflow signal to the ECU is reduced to 95 grams per second 5 the ECU will delivery fuel for this amount of air The resulting AFR will be 12 6 1 5 leaner Main Airflow Modes The MAF Translator Gen II sends airflow information in the form of an electrical signal voltage or pulse frequency to the ECU Frequency signals are send out on the green frequency out wire of the 10 pin harness Voltage signals are sent out on the Brown V Out 1 or the Gray V out 2 wires of the 10 pin Main harness The unit can be used to tune the vehicle using the original MAF sensor or an upgraded alternative sensor can be used Examples include using a GM LS1 or LS6 MAF on a Toyota Supra Mitsubishi Eclipse or Ford SVO Mustang The MAF Translator Gen II is compatible with a great number of MAF sensors both frequency style and voltage Installation Details This section contains installation details that are not specific to any particular vehicle Please refer to the appendix and other installation diagrams contained in the MAF Translator Gen II kit Harness connections are referred to by connector designation M or A Main or Aux and pin number for example the 12V main power input is connected
16. will be operating Open Loop whenever AFR tracking is enabled Min RPM RPM above which the AFR tracking is enabled Set this high enough to ensure the ECU will be operating Open Loop whenever AFR tracking is enabled Min Load Engine load above which AFR tracking is enabled Set this high enough to ensure the ECU will be operating Open Loop whenever AFR tracking is enabled Lean Lim The maximum that the system will lean out to maintain the desired A F It is advisable to set this around 5 so the AFR will not go incredibly lean if there is a problem with the wideband unit MAF Translator Gen II User Manual 16 Rich Lim The maximum that the system will richen up to maintain the desired A F This can be fairly high 25 to help protect the engine in case of a fuel system partial failure Gain The speed that the system will try to maintain the desired A F ratio Start with 5 and test the operation of the tracking Setting this too high will result in unstable AFR and a system that oscillated AFR 2000R AFR 8000R Desired A F Ratio at each RPM from 2000 RPM to 8000 Aux Change to target AFR when The Window Switch is activated there is a AF Trk Dly parameter on the Settings page which controls a delay from when the enabling conditions are true to when AFR tracking begins Note The tune values can be reset to the factory defaults by holding the upper right keypad button for 15 seconds while powering up the uni
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