Quote Originally Posted by ryan roopnarine
i've gotten "trans programs" for a throttle plate that wouldn't close properly that indicated the TPS, the MAF and the ICV--it also only showed up when i engaged the kickdown or wot'd the throttle (the car didn't know what to make of the TPS reporting) in the m50, those three are closely connected, and if one can't reconcile the data the others are producting, the normal m50 car will throw a trans program. does the 4l30e TCU hook up to the m3 computer through the stock 525i wiring?
The TCU is behind the passenger side kick panel speaker and is factory wired there so I assume it doesn't have a problem communicating with the M3 ECU through the stock wiring. I still have the old 4L30E I removed from the wagon so I could swap out the speed sensor if need be. I bought some electrical contact cleaner and thought I might as well spray out the electrical connectors on the trans on Monday. It spent about 90 days on my patio so might have developed a little build up on the contacts. The speed sensor is on the tailshaft or inside the valve body area?

Thanks.

Paul