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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E36 (1991 - 1999)

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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  #1  
Old 12-12-2012, 09:27 PM
ekoms ekoms is offline
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Location: AZ
 
Join Date: Nov 2011
Posts: 9
Mein Auto: 95 325is / 01 330ci
CEL, misfiring, sputtering, running like crap......help!

hello,
First off it an 95 325is 2.5 auto. yesterday the fuel pump died on me, so I installed a new one.
car started & ran/operated perfectly until around 4pm today. I did the pedal trick for the CEL & its giving an 1221 code & the car is now misfiring, sputtering, running like crap, & pretty much undriveable. I know that the 1221 code is referring to the primary o2 sensor. what else should I look into. fuel filter was replaced a month ago & it idles fine. once the petrol pedal is pressed it starts running rough, missing & sputtering.

thank you.
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  #2  
Old 12-12-2012, 09:29 PM
BMRfanatic's Avatar
BMRfanatic BMRfanatic is offline
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Location: South Shore MA
 
Join Date: Mar 2008
Posts: 4,988
Mein Auto: Bad Luck 46
well

did you check for vacuum leaks?
is the maf clean?

how old is the o2? im almost positive that your o2 sensor died and now your car is freaking out and doing whats described here but its better to narrow it down than to throw parts at it

http://www.bimmerfest.com/forums/sho...567&highlight=

maybe you can get some ideas here
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Last edited by BMRfanatic; 12-12-2012 at 09:31 PM.
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  #3  
Old 12-12-2012, 10:52 PM
ekoms ekoms is offline
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Location: AZ
 
Join Date: Nov 2011
Posts: 9
Mein Auto: 95 325is / 01 330ci
Im gonna check the maf & for vac leaks in the morning.

no clue how old the o2 sensor is. its getting replaced regardless.


thank you
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