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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 08-29-2007, 06:43 AM
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jetter2 jetter2 is offline
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Mein Auto: 05 ZHP CPE
"Check Engine" light comes on..

The E30 runs great...although sometimes the "Check Engine" red light on the dash will come on for one or two seconds and then just go off.

Is this a bad sensor? Any ideas what is causing it? The car runs and drives great, all fluids are checked and changed as required etc...

I just don't want something to sneak up and bit me in the ass. The M20 is a great motor and hasn't given me any issues yet....
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  #2  
Old 08-29-2007, 08:14 AM
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AndrewZ AndrewZ is offline
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That use to happen to my 318. All I did was disconnect the negative cable for about 15 seconds, then reconnect. The problem went away for me. Not sure what cause it though.
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  #3  
Old 08-29-2007, 02:06 PM
Lanc3r Lanc3r is offline
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Quote:
Originally Posted by jetter2 View Post
The E30 runs great...although sometimes the "Check Engine" red light on the dash will come on for one or two seconds and then just go off.

Is this a bad sensor? Any ideas what is causing it? The car runs and drives great, all fluids are checked and changed as required etc...

I just don't want something to sneak up and bit me in the ass. The M20 is a great motor and hasn't given me any issues yet....
You've been around long enough to know to search first.

There are like 6 codes your Motronic will spit out. Could there be a pedal trick for your car?

Search.
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  #4  
Old 08-29-2007, 02:07 PM
Lanc3r Lanc3r is offline
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Originally Posted by LuvThatSam View Post
That use to happen to my 318. All I did was disconnect the negative cable for about 15 seconds, then reconnect. The problem went away for me. Not sure what cause it though.
Even better advice. The 318 uses a different EM, L-Jetronic. It spits like 4 codes. Real complicated.
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  #5  
Old 08-29-2007, 02:32 PM
Lanc3r Lanc3r is offline
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Screw it, you owe me Jetter.

http://www.bimmerfest.com/forums/sho...ht=pedal+trick
http://www.bimmerfest.com/forums/sho...t=engine+codes
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  #6  
Old 08-29-2007, 09:01 PM
SWISS SWISS is offline
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Mein Auto: E30 S52 / S52 M roady
He should let you borrow his Aston and bang his nympho centerfold GF.
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  #7  
Old 09-02-2007, 02:25 PM
John L. Harrell John L. Harrell is offline
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Try tapping on the face of the instrument cluster.

If it comes on /off most likely poor contacts on the
si board and plugs.
A little Wd 40 will do ya right.

O2 sensor on the way out will present itself the same way you describe. May take many many months to get to the point of hard failure. Unless you have access to a fault code reader you really are just guessing.
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  #8  
Old 09-02-2007, 06:34 PM
KottonMouthKing KottonMouthKing is offline
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Quote:
Originally Posted by LuvThatSam View Post
That use to happen to my 318. All I did was disconnect the negative cable for about 15 seconds, then reconnect. The problem went away for me. Not sure what cause it though.
i did that same thing when i had a dashboard full of flashing lights even though there was nothing wrong with it and it fixed them all
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