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Does anyone have a good write up or know where I could find a qualite write up on this with parts list and direction or somthin? I have tried but I'm comin up bunk.
PEACE
the MAF conversion is pretty easy, so instead of trying to make some big writeup about it, i'll make it very clear and simple. This guide is meant for people who have a decent understanding of how the SMT6 works, and have attempted to tune their cars a little with it before using a MAF.
- First, you need an SMT6. It needs to be wired into your ECU harness, and you must have control over the AFM signal. Also, use the AFM signal as your throttle signal. It also helps to have the O2 sensor hooked in for additional data.
- Next, turn your car on and leave it idle. Turn on SMT6 logging and note what voltages your current AFM is putting out. Rev your engine up to 1K, allow a second for the SMT6 to log what your car is doing. Now, rev up to 2k for a second.
- Now, drive your car around with logging still enabled. Attempt to subject your car to different loads/rpms. Make sure you do 1 WOT run to redline. Now, you should have a log of what your AFM is doing throughout the throttle/rpm map.
- Next, get yourself a MAF and install it. I bought a 1998 328i Seimens MAF. As far as installation goes, all you really need to do is power the MAF, and get it's signal. You will most likely need a wiring diagram (http://www.autolib.diakom.ru:8001/CAR/BMW/). If you're using the '98 328i MAF, i believe pin2 is signal, pin3 is power, and pin1 is ground.
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