Need help with MAF Translatour!!!

[hippy]

I have a 98 gsx 6 bolt swap 680 injectors 255 pump and a fmic t3/t4 scm61 turbo and i have a 3" gm maf and translatour im trying to hook up. I just need to know a few small things the only wire i need to hook up is teh white one right?? to a tack siginal? and 2 is where should my settings be at inside?? im having diffuctlys trying to figure this out?? I read the book and am still lost a bit! Can some one tell me what to put the aux at and them 4 little switches at, and where the other 4 knobs should be at?? ALso do i need to change any of the setings in my dsm link with the new maf hooked up?? Thansk!Thank you very much!!!

 

[playitlouddsm]

First off what version is this maft? Then yes you will need to calibrate the maft through dsmlink. Check out the link forums they have loads of info on how to calibrate the maft. Basically when you run the maft most guys set their injectors to the recomended global and deadtime then leave them alone and calibrate the maft through the airflow settings. Here's how, this is directly from a dsmlink forum.

Tuning : MAF Translator Tuning Using GM3Bar

Assumptions for Using This Tuning Technique:
-Zero boost/vacuum leaks
-You know the correct deadtime and global fuel settings for your injectors, for your car.
-If you are using recommended injector setting, your base fuel pressure is 43.5psi.
-Your not over running your fuel pressure regulator.
-Your fuel system is adequate for your application.

Log the following values:
-RPM (~ your DSMLink setting)
-LTFT-Lo
-LTFT-Mid
-STFT
-GM3Bar, GreddyBoost or any externally DSMLink logged Boost source
-BoostEst
-RawMAS

MAFt Set-Up:
-Set MAFt base fuel setting for stock injectors (450's).
-I like to do all of my adjustments with the DSMLink airflow table. SO..
-Set MAFt idle, mid & WOT knobs to zero.
-Clamp IAT/Baro signal in DSMlink under Misc.

Idle Tuning (LTFT-Lo) 50hz
-Set injector fuel settings to what you were already running them at or what is recommended in the DSMLink guide.
-While idling the engine watch the LTFT-Lo and STFT.
-If LTFT-Lo fuel trims are positive, add air at the 50 Hz point in the airflow table.
-If LTFT-Lo fuel trims are negative, subtract air at the 50 Hz point in the airflow table.
-Adjust the airflow 1% for each 1% fuel trims are adjusting fuel.
EXAMPLE: If LTFT-Lo is at a constant +5%, add +5% to the 50 Hz slider in the airflow table. If the LTFT-Lo is at a constant +12.5% and STFT is at +13%, add +26% to the 50 Hz slider in the airflow table. Repeat until you are happy.

Rev Tuning (STFT) 150hz
-After you are done with idle tuning, rev the engine and keep it at the 150 Hz level.
-Watch your STFT's for needed adjustments.
-If STFT fuel trims are positive, add air at the 150 Hz point in the airflow table.
-If STFT fuel trims are negative, subtract air at the 150 Hz point in the airflow table.
-Adjust the airflow 1% for each 1% fuel trims are adjusting fuel.
EXAMPLE: If STFT’s are bouncing between +14% and +16%, add +15% to the 150 Hz slider in the airflow table. Repeat until you are happy.

Cruise Tuning (LTFT-Mid) 250hz
-Drive on the freeway at a steady speed to get stable LTFT-Mid fuel trims.
-If LTFT-Mid fuel trims are positive, add air at the 250 Hz point in the airflow table.
-If LTFT-Mid fuel trims are negative, subtract air at the 250 Hz point in the airflow table.
-Adjust the airflow 1% for each 1% fuel trims are adjusting fuel.
EXAMPLE: If LTFT-Mid is at a constant +7%, add +7% to the 250 Hz slider in the airflow table. Repeat until you are happy.

WOT Tuning (GM3Bar, BoostEst, & RawMAF) 400hz, 800hz, 1200hz, 1600hz, 2000hz, 2400hz
-It is easier to do this if BoostEst is right above GM3Bar in the DSMLink application.
-After a 3rd gear pull from 1500rpm to redline study the relationship between BoostEst and GM3Bar at each RawMAF Hz point.
-Adjust the airflow at each RawMAF Hz point in the Airflow Table using the associated Hz point in the log.
-When BoostEst is higher than GM3Bar, subtract airflow.
-When BoostEst is lower than GM3Bar, add airflow.
-Make small changes at one time and then just repeat until the BoostEst matches the GM3Bar or it is close enough and you give up.

Notes
-LTFT-Lo tends to be slightly unstable, so do not go crazy trying to get it perfect. With-in 3% of each other and with-in 5% of zero is acceptable.
-Some changes to the Airflow Table at the 150 Hz point maybe needed when "cruise tuning."
-Adjustment to any slider in the airflow table WILL affect the two sliders adjacent to it.
-For me, getting the 400 Hz point perfect created a nasty dip at the untunable 500-600 Hz range. Tuning the 500 Hz point using the 400 Hz point in the Airflow Table worked much better.
-Sometimes tuning using a HZ point 100 more than what you are tuning, works better. So, instead of 1200 Hz sometimes using 1300 Hz works better.
-This is not the "Ideal, Perfect" way to tune a MAFt, but it was sure easy. As with any tuning the main problem arises with boost leaks and fuel delivery discrepancies. So long as you have no boost leaks and your fuel system is working properly, this is an extremely easy and viable way to tune a MAFt.
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