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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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Old 05-04-2004, 07:53 PM   #1 (permalink)
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I am looking for some help.I have a 1986 BMW 325with the 2.7 Inline 6.The problem i have is when i start the car hot or cold the idle jumps from 1000 to 3000 rpms and keeps on doing it.The car does not stall while doing this.If some one could give me a few pointers or maybe answers on what the heck is causing this it would be greatly appreciated...Thanks ghead
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Old 05-05-2004, 06:06 AM   #2 (permalink)
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Have someone look at your idle control valve, and check all your high-pressure hoses to make sure you're not losing gasoline anywhere. That's probably not it.

It's an inline six, by the way.
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Old 05-05-2004, 06:22 AM   #3 (permalink)
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With the fuel mixture being sold in USA many are finding issues with idle.

The gasoline is being converted from MTBE to alternative additives.

http://www.energy.ca.gov/mtbe/

Using a restrictor with a 1/4 inch hole to control the maximum RPM.

Here is a link to Sam.

http://www.mesaperformance.com/faqs/idle.html

Later,
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Old 05-05-2004, 11:08 AM   #4 (permalink)
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Originally posted by Aether@May 5 2004, 06:46 AM
Have someone look at your idle control valve, and check all your high-pressure hoses to make sure you're not losing gasoline anywhere. That's probably not it.

It's an inline six, by the way.
Thanks...I am reading up some more...Also i fixed my post
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