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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E30 (1982 - 1993)

E30 (1982 - 1993)
God's Chariot. The E30 was produced primarily from 1982 through 1991. The cabriolet was the one exception which was produced through 1993.

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  #1  
Old 04-15-2011, 06:40 AM
Jajjaaj Jajjaaj is offline
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Location: Colorado
 
Join Date: Mar 2011
Posts: 14
Mein Auto: 1992 325ic
Surging

When I turn the car on first time in the day the throttle surges. It only does this after sitting all night. But driving around town, I can feel faint surges while driving. This has been going on for about a week. I've had this car 4 years and this is the first time I have experienced this. Any ideas before I dig in?
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  #2  
Old 04-15-2011, 10:51 AM
Pennyw1se Pennyw1se is offline
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Location: Phoenix
 
Join Date: Jun 2009
Posts: 377
Mein Auto: 1988 325e
Start with the basics. Clean your AFM door/flap, ICV and throttle body with some carb cleaner. Then visually check and listen for any vacuum leaks.
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Old 04-17-2011, 11:58 AM
Jajjaaj Jajjaaj is offline
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Location: Colorado
 
Join Date: Mar 2011
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Mein Auto: 1992 325ic
Thanks for the help. Turned out that the oxygen sensor was going out.
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Old 04-18-2011, 03:21 PM
Pennyw1se Pennyw1se is offline
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Mein Auto: 1988 325e
The O2 sensor doesn't do anything until your car has warmed up. I must have misunderstood. Glad you found your problem, though.
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