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3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

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Old 03-20-2010, 06:57 PM   #1 (permalink)
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92 318is no power at 3000 rpms !! PLEASE HELP

PLEASE HELP MEE !!!
I have a 1992 318is

The car will start and idle with no problem, purrs like a kitten all day, sounds great, no knocking or erratic idle. As soon as you hit the gas to rev it up around 3-4000 rpms, it bogs down, spits, sputters and sounds like it gonna stall. Let off the gas and it will go back to idle and run perfect again.
also i can drive the car when its cold FINE, no problems, only once its warmed up does it start

Ive changed plugs, coils, checked the cat, installed 2 different DME computers, valve cover gasket, coolant temp sensor, idle control valve,
fuel filer, vaccum lines... EVERYTHING !!

Anybody have any suggestions or ever heard of this ?
Its weird to me that its fine and runs great when cold, and even at idle and between 0-2500 rpms, only above that when its warm does it do this !

anything would be appreciated thanks !
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Old 03-20-2010, 07:31 PM   #2 (permalink)
OMFG another one!?
 
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Maybe cam or crank position sensor to look: realoem.com
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Old 03-21-2010, 04:33 PM   #3 (permalink)
Millions of them.
 
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3 things come to mind, if you haven't checked them: throttle position sensor, air flow meter and DISA valve.
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Old 03-21-2010, 11:08 PM   #4 (permalink)
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fuel starvation... i.e. failing fuel pump.

air starvation - try and run it a few miles without air filter and let's see. Dirty or faulty AFM will also cause the symptoms you complain about.

Check also for leaks and cracks in the intake boot.

*Perhaps you have the wrong spec for spark plugs???

**In older cars such as your series... internal corrosion in the AFM terminals and the circuit board is the usual cause of failure.
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Old 03-22-2010, 10:36 PM   #5 (permalink)
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Originally Posted by darkhorse737 View Post
fuel starvation... i.e. failing fuel pump.

air starvation - try and run it a few miles without air filter and let's see. Dirty or faulty AFM will also cause the symptoms you complain about.

Check also for leaks and cracks in the intake boot.

*Perhaps you have the wrong spec for spark plugs???

**In older cars such as your series... internal corrosion in the AFM terminals and the circuit board is the usual cause of failure.
+1

I'd guess fuel pump especially, I have a '92 325 and the pumps been acting up for a while now. Not quite that bad, but its causing some other issues. Plugs would be the other thing I'd think right away... though usually if it's coils or plugs it's a constant misfire. If the plugs are only a little bad it could idle fine and act up under partial throttle.

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Old 03-23-2010, 12:02 PM   #6 (permalink)
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hey man,

i have the 92 318is that had the same problem. i got an pm from ya but i forgot my password and couldn't get it back so i started a new acct.

my problem ended up being the rubber part in the harmonic balancer was ripped up, it would idle fine all day long but as soon as you hit the gas it would sputter and bog down and start slipping. one day it actually revved fine (must have stopped in the exact correct position) when i started it, so i took it and did a couple donuts and beat on it a little and it finally totally broke loose... sounds weird but thats what it was... 100 bucks from a junkyard and i was good to go.

hope this helps man
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Old 04-17-2011, 03:33 PM   #7 (permalink)
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My 1995 318i is doing the EXACT thing you described. If you still check this, please let me know what your problem ended up being. Pulling my hair out here...
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Old 09-12-2011, 12:14 AM   #8 (permalink)
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did anyone find out what specifically causes the car not to rev over 3000 rpms on the 95 318is ?
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Old 09-14-2011, 11:44 AM   #9 (permalink)
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where is the harmonic balancer?
I have the same problem with my 96 318i
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