Ideas on idle fluctuation? - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
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#1 (permalink) Old 04-23-2008, 01:44 PM
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Ideas on idle fluctuation?

so i went to start my car this morning and it started right up just fine and i let it idle and warm up for a minute or so, as soon as i started to pull out of my driveway i felt the throttle give out and then come back with more than i was giving it, thats when it started to fluctuate the idle between 1000 and 2000 rpm whenever it was free of the drivetrain,this happened within a second because it was running fine just before i gave it gas. also when i start it up it speeds up to 2700 rpm and stays there for 20 seconds before it returns to fluctuating. i went back home and unplugged my ICV while it was running and that didn't do anything at all. i took the ICV off and it seems to be pretty clean inside, i dont know if it still works or not because i dont have a multimeter, i tightened all of my hoses and returned the ICV and it still runs the same way. is there any other thing that might cause this? can i run any tests or anything that would help me? any input or reasonable idea would be greatly appreciated.
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