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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 04-17-2013, 10:30 PM
actletpone actletpone is offline
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Mein Auto: E30 320i
running rich

My car seems to be running rich at idle to the point that anyone who stands near it comments on the smell.

I'm not sure why it is running rich. I have tested the coolant temp sensor, throttle position sensor, cleaned + tested the idle control valve, replaced the air filter and swapped in another air flow meter.

The only other things I can think of that could cause this are the ecu, fuel pressure regulator or injectors. The car has no 02 sensor from factory.

I know I have a vacuum leak on the intake boot and intake manifold gasket, so it should be running lean if anything.

Could it just be the fact my car came factory with no catalytic converter?
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  #2  
Old 04-17-2013, 11:27 PM
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Fpr.
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  #3  
Old 04-18-2013, 10:54 AM
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downhiller downhiller is offline
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negative on the intake leaks and running lean. at idle is the highest amount of vacuum closing the fpr. as the throttle opens, the vacuum goes down opening the fpr. i would start there
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  #4  
Old 04-18-2013, 01:51 PM
actletpone actletpone is offline
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Quote:
Originally Posted by downhiller View Post
negative on the intake leaks and running lean. at idle is the highest amount of vacuum closing the fpr. as the throttle opens, the vacuum goes down opening the fpr. i would start there
Cheers, logic told me it would make it run lean but I was guessing and did wonder if it somehow caused the opposite effect. What your saying makes sense. In a couple of months I plan to give the car a bit of an overhaul cam belt/sub frame bushings/ fix the vacuum leaks etc. So I will see what the result is.
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  #5  
Old 04-18-2013, 03:27 PM
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Quote:
Originally Posted by First time View Post
Fpr.
Call me stupid, what is fpr?
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  #6  
Old 04-18-2013, 04:38 PM
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OK, you're stupid. Kidding!

FPR= Fuel Pressure Regulator
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  #7  
Old 04-18-2013, 06:32 PM
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Quote:
Originally Posted by hornhospital View Post
OK, you're stupid. Kidding!

FPR= Fuel Pressure Regulator
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1992 325i Convertible M-Technic II Appearance Package
2005 X3 3.0i (Lease return in 2008)
2006 330i (Lease return 2009)
2008 Cooper S Clubman (Sold)
2006 650i (sold)
2011 535i M-Sport (ED September 17th, 2011,redeliver on 11/15/2011, sold)
2011 Z4 SDrive35is (ED September 17th, 2011, redeliver on 11/9/2011, Lease return on September 2013)
2013 M3 (ED pickup April 23rd, 2013, redeliver on 6/28/2013)
BMWCCA: 359118
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  #8  
Old 05-02-2013, 02:19 PM
actletpone actletpone is offline
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Mein Auto: E30 320i
Is it possible to remove the intake manifold without removing the thermostat housing and / or injectors?
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  #9  
Old 05-02-2013, 07:27 PM
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injectors come off with it as i recall. thermostat housing stays
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  #10  
Old 05-12-2013, 03:46 PM
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@ actletpone. Did you ever figure out what caused your problem?
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  #11  
Old 05-13-2013, 04:31 AM
actletpone actletpone is offline
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Been real busy lately but have new intake manifold gaskets I hope to install in a few days. So I will see how it goes.
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  #12  
Old 05-19-2013, 09:31 PM
actletpone actletpone is offline
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This is the condition the cylinder 1 intake gasket was in. It was sitting like that in the inlet port.
Car seems to be running better and I think the smell has gone. Thanks.
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  #13  
Old 05-20-2013, 06:10 AM
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Mein Auto: 323i E30 2-door
At least now you know that somebody with clumsy fingers had worked on your engine before
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