91 BMW 318is. 180K
About 2 weeks ago i replaced the alternator because it went bad and after i got it back the car drove fine. Suddenly it would sometimes idle wierd. When i put the car in neutral it would rev up and down between 1500 and 1000. sometimes id have it in gear and it would actually stay at 2000 RPM. I took out the ICV and cleaned it. The "door" inside the ICV is only open about 1/8 of an inch and no more, if i use my finger i can close the door and the spring makes it open right back up but no more than 1/8th of an inch. Decided to look for vacuum leaks but couldnt find any when i took out the Air intake hose it was lined with Oil.
the car turns on fine, and if i hold the foot on the throttle it sounds ok too, but as soon as i let go without any hesitation to idle the car will just turn off.
any help would be great
thanks guys!
About 2 weeks ago i replaced the alternator because it went bad and after i got it back the car drove fine. Suddenly it would sometimes idle wierd. When i put the car in neutral it would rev up and down between 1500 and 1000. sometimes id have it in gear and it would actually stay at 2000 RPM. I took out the ICV and cleaned it. The "door" inside the ICV is only open about 1/8 of an inch and no more, if i use my finger i can close the door and the spring makes it open right back up but no more than 1/8th of an inch. Decided to look for vacuum leaks but couldnt find any when i took out the Air intake hose it was lined with Oil.
the car turns on fine, and if i hold the foot on the throttle it sounds ok too, but as soon as i let go without any hesitation to idle the car will just turn off.
any help would be great
thanks guys!
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