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Old 11-21-2012, 05:12 AM
SWISS SWISS is offline
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Mein Auto: E30 S52 / S52 M roady
Originally Posted by FenderBender View Post
How can I remove the Iac to check other things? I heard something about a penny with a hole in it?

Sent from my ADR6400L using Bimmer App
That's just a way to reduce the air volume and manually tame the idle. It will never work right and may cause the dme to make adjust fuel trims and make it run worse after adaptation. I would just unplug it to see if it functions it should spin and make a buzzing sound when running.

Check the engine for a large vacuum leak, smoke test is a great method to locate problem areas. While it may be the IACV, I would start with the basics.

Last edited by SWISS; 11-21-2012 at 05:13 AM.
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