Join Date: Feb 2011
Location: Woodburn, oregon
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92 318is idling problem.
Now my car will occasionally idle a bit rough. When I say that I mean by that After starting up, it will surge up to about 1200 rpm, then stall. And keep doing it more and more and won't stop. And when it does this, it sounds like its missing. Now sometimes it will run just fine.
I've been working on the problem for about a year now after I rebuilt the head. But i just can't figure out what the problem is??
I've replaced the dme, fuel filter, belts, o2 sensor (only one and its before cat), idle control valve, fuel pressure regulator, coil packs, spark plugs, plug wires. And I've been looking for a vacuum leak but I can't find ANYTHING.
Can anyone shed some type of light on this, I'm so stuck right now.
Originally Posted by black318i
Unicorn taint, I hear it's impossible to find though.