RE: E30 engine problems

[Dan Hermann <dahermann@xxxxxxxxxxxx>]

>>A friend is having problems with his 87 325is.  It will run fine, then run rough and occasionally stumble/hesitate under acceleration.  Using a different ECU (from a junkyard) made no difference.  The plugs, plug wires, fuel filter and O2 sensor have been recently replaced.  The check engine light stays on constantly and does not flash a code when the key is turned to on. Anyone have any suggestions?<<

i had a similar problem that new plug wires fixed.  if you have eliminated that, i would consider fuel delivery problems.  the fuel pump relay and fuel pump itself are known failure points.

good luck,

dan
88 325is -- currently not running due to fuel delivery issues :(

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