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Stalling out after driving a while. Allow to cool and does fine. Engine lite on. 850 1995

posted by  jgreenwood on  Sat Mar 6 13:08 CST 2010
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last visit: Sun Sep 11 19:10 CST 2011
[RELATED]

Hello Klaus. I was hoping you would weigh in. I pulled the codes three separate times to be sure and the codes were: 121 - Mass Air Flow sensor signal, 232 - Long Term Fuel Trim - Idling, and 231 - Long Term Fuel Trim - partial load. I am not sure exactly what they mean. The MAF sensor looks like a junk yard replacement part that someone put on the car before I got it. It has those marker numbers that u-pull-it yards use. I am thinking that possibly I may need the oxy sensors also. Just a guess. Perhaps the MAF is the main culprit and I affecting the oxy sensors? Someone else said to test the coil. Also I am not sure I understood how to get the service light off as per your instructions. Thanks for any help!!! -- john






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