Help ?? 1989 535i
Problem. when started idles for a few seconds,then starts running rough.put foot on accelerator doent seem to have any power. missing running rough smell of rich fuel from Exhaust.Any advise appreciated Thanks
Turn key to on, Floor accelerator 5 times within 5 seconds, count the "check engine" light flashes. It will flash out the code that the on-board computer has in it, and possibly the problem. With my 535i - Mass airflow sensor. You'll have to search and look up the meaning of the codes. For example: 1 flash, short pause, 4 flashes, short pause, 3 flashes, short pause, 1 flash, LONG pause would be trouble code; 1431 (not an actual code, by the way...) Good luck
Changed spark plugs recently? Check valve adjustments?
M30 engines are awesome. My mechanic told me it's bullet-proof. I believe it.
Good luck, it seems like an easy fix. Be friends with an independent BMW mechanic in
your area.
how long has it been since the spark plug wires were changed? Old wires will produce a lot of strange behavior on that motor.
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