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Richard, try cleaning the connections on the temp (archive)

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Posted by Bill R. on August 01, 2001 at 23:42:18:

In Reply to: Rough idle and surging idle on M20, 90 525I HELP! posted by Richard V on August 01, 2001 at 23:30:40:

sensor on the thermostat housing. The blue connector..

When I start my car....the idle is very rough and sometimes will stall. If it doesnt...it will surge from 500-800 until the engine warms. The car idles better when the engine warms up...but it still is a little rough. I have tried cleaning the ICV and it really didnt work much. Any ideas??? Do I have to buy a new ICV??? Would the ICV cause it to idle rough when my engine is cold but not after it warms up??
Thanks!





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