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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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Old 03-09-2011, 01:46 PM
e364Banger e364Banger is offline
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Location: Ephrata, PA
Join Date: Mar 2011
Posts: 4
Mein Auto: 1994 318i
sputters once its warmed up but idles just fine??????? WTF?

so i just picked up a 1994 BMW 318i and fixed the overheating problem with a simple thermostat replacement. i was stoked till i started driving it and once it warms up it sputters, spits, backfires and misfires like CRAZY!!! oddly enough though it idles like a dream. what in the world could be causing this??? i have already run seafoam through it and replaced all 4 spark plugs. no improvement at all. I got home from work today and started it up to pull it back in the garage to work on it and spun it around the block. when it is still cold it runs, accelerates, and everything perfect so i kept it running and let it get up to operating temperature and then i spun it around the block again and it ran horribly. is it the MAF sensor? O2 sensor? dirty intake manifold? PLEASE HELP!!!
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