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Running rich and CEL comes on... Running rich and CEL comes on...

Tuning & Engine Management EPROMS, ECU, MAF, knock, EGT, wideband, datalogging, fuel trims, etc. Read this Forum's Strict Guidelines.

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Old 10-19-2002, 01:24 PM   #1 (permalink)
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Running rich and CEL comes on...
...what could be it??


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Old 10-21-2002, 07:44 AM   #2 (permalink)
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Perhaps the code for fuel trim out of adjustment range? Just a guess I forget the number for it.. Go datalog it and see to be sure.


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Old 10-21-2002, 08:34 AM   #3 (permalink)
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yeah, it's the short term fuel trim most likely. Not sure how to correct it without an S-AFC...


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Old 10-23-2002, 08:57 AM   #4 (permalink)
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A bad o2 will make you run super rich and also can throw CEL's.

Find a data logger or hook it up...
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