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Thread: 1997 528i cold start roughness
11-09-2006 03:09 PM #1
1997 528i cold start roughness
My girlfriend recently bought a 1997 528i and inherited a rough cold start idle. I have cleaned the ICV, throttle body, and used some BG44K to help clean the injectors, but it is still there. I have wondered if the TPS is out of adjustment down at the bottom of travel since if you apply a little throttle pressure upon startup and hold it so the startup idle is a little higher for 10 sec or so then the true idle smooths out so that the car doesn't stumble or stall.
Any advice is greatly appreciated.
Many thanks, Seth
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