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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 01-27-2013, 11:44 PM
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Krumchev2 Krumchev2 is offline
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Location: Easton, Pa
 
Join Date: Aug 2009
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Mein Auto: 91' 318ic
flashing check engine light

So the other day I started my 91' 318ic and started driving and all was fine until I tried to hammer down on the pedal in second gear. It started to stutter and almost jump as if it were getting spurts of power. Soon after the check engine light came on but the weird thing is it doesn't stay on. If I give it gas it goes off but quickly comes back on and at a constant speed it flashes on and off at random times. Also, when I come to a complete stop, the rpms jump up real high and then after maybe a minute of being real high they dip way low and the car almost stalls and then it idles fine from then on. Here's the real thing that has me confused, if I let the car idle to warm up from a cold start it doesn't do the crazy rpm thing but the check engine light still flashes. Any ideas from anyone?
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  #2  
Old 01-27-2013, 11:53 PM
E60black E60black is offline
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I think it means you're seriously damaging either the engine or the cat or even both...check if all connections are secure/tight in the bay. Seems like some sort of fuel connector or ignition wire.
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  #3  
Old 01-27-2013, 11:58 PM
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Krumchev2 Krumchev2 is offline
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Quote:
Originally Posted by E60black View Post
I think it means you're seriously damaging either the engine or the cat or even both...check if all connections are secure/tight in the bay. Seems like some sort of fuel connector or ignition wire.
That's very vague but I'll take a peek tomorrow and make sure all plugs are secured tightly. Although I was leaning more towards a sensor, because after it has time to warm up it runs fine, the check engine light just flashes
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Old 01-28-2013, 11:07 AM
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fcsteve fcsteve is offline
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Mein Auto: 90' 24v, 89' 325is
stomp test it, see what it says and go from there
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  #5  
Old 01-28-2013, 11:27 AM
Chaunceton Chaunceton is offline
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Quote:
Originally Posted by fcsteve View Post
stomp test it, see what it says and go from there
+1

Do this before your next move.
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  #6  
Old 01-28-2013, 08:15 PM
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BMWFatherFigure BMWFatherFigure is offline
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Mein Auto: E23;E30;E38;E32;E34 +
Checks as above plus fuel rail pressure and leaks. Check fuel pump flow rate. Sounds a bit like fuel starvation at top end bringing on light via O2 sensor.
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  #7  
Old 01-29-2013, 10:27 PM
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Krumchev2 Krumchev2 is offline
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Location: Easton, Pa
 
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Mein Auto: 91' 318ic
Quote:
Originally Posted by fcsteve View Post
stomp test it, see what it says and go from there
That was my first thought but didn't think it would work because it doesnt stay on. I'll give it a shot tomorrow
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Old 01-30-2013, 07:45 AM
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Krumchev2 Krumchev2 is offline
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Location: Easton, Pa
 
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Mein Auto: 91' 318ic
Well the stomp code was 1223 which it coolant temp sensor, which was what i had originally thought it was but wasn't sure. Never removed a coolant temp sensor before, what am I in for?
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  #9  
Old 02-02-2013, 07:59 PM
Microtesties Microtesties is online now
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Location: Concord, NH
 
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Mein Auto: 1990 BMW 525i
Quote:
Originally Posted by Krumchev2 View Post
Well the stomp code was 1223 which it coolant temp sensor, which was what i had originally thought it was but wasn't sure. Never removed a coolant temp sensor before, what am I in for?
A treacherous, frustrating, and ultimately horrid walk in the park. No seriously though, it's insanely easy, just look at your thermostat housing and it's staring you right in the face, begging to be removed.
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Old 02-03-2013, 05:26 PM
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BMWFatherFigure BMWFatherFigure is offline
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Location: Perth, Western Australia
 
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Mein Auto: E23;E30;E38;E32;E34 +
get those injectors rig cleaned and the ICV cleaned as well.
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Current:
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