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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series & 4 Series > E36 (1991 - 1999)

E36 (1991 - 1999)
The E36 chassis 3-Series BMW was a huge hit among driving enthusiasts from the first moment the car hit the pavement. The E36 won numerous awards over the years it was produced and is still a favorite of many BMW enthusiasts to this day! -- View the E36 Wiki

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  #1  
Old 01-11-2017, 10:47 PM
chevylover chevylover is offline
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Mein Auto:
1994 bmw 318i idle warm up

I got a question. What causes the engine to idle high when the engine is cold. And come down to normal idle after a few min. I have a 1994 bmw 318i and it runs good. Just can't find out what sensor or what will do that. Anyone know?
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  #2  
Old 01-14-2017, 05:51 PM
Greenday694 Greenday694 is offline
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Mein Auto: 93 BMW 325is
Check for vacuum leak. Check for any leaks between the throttle body and the mass air flow meter. Check the mass air flow meter to make sure it's working properly.

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Old 01-14-2017, 06:35 PM
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dc_wright dc_wright is offline
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Mein Auto: '06 Z4 3.0si, '11 128CiC
How high is your high idle? It's normal for the idle to be 1,000 to 1,200 rpms initially when cold and then it should drop down to normal on it's own after the engine starts to warm.
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Old 01-18-2017, 09:08 PM
chevylover chevylover is offline
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It's like 750. I've seen some bmws start and run at like 1500 for a few min to Warm up then cut down to normal idle. Mine just starts and runs at normal idle all the time.

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