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Hunting idle speed (archive)
[ Follow Ups ] [ 3-series (E21) Message Board ] [ Msg. Board FAQ ]
Posted by Lance on August 10, 2000 at 16:00:57:

My O2 sensor has been disconnected for a long time, before I bought the car. I didn't realize this until my o2 light came on and I went to replace it/reset the light. (interstingly enough, the car passed inspection for emissions sans o2 sensor!)

Now, when the car is started from cold, the idle oscilates (hunts) for a few minutes until the temp gauge just comes off the nail. Then everything is fine (usually about 2 minutes).

What would cause this? Is this my warm-up regulator?

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