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2003 Mazda Tribute
March, 25, 2010 AT 3:01 AM
Engine Performance problem
2003 Mazda Tribute 6 cyl Two Wheel Drive Automatic 85,000 miles
Front cat recently replaced; old one broke up, plugged up exhaust. Ran fine for a week, then ran rough lost power; DTC- " random misfires" Got tune up, several new coils, including cyl 4 and 5.
A week later, " check engine" light on again; it runs fine, but codes say misfires on cyl 4 and 5 and front cat is bad.
Had codes cleared, drove about 200 mi, and same error codes come up again - misfires on 4 and 5, front cat bad. Meantime, it runs great! What's the problem" Could PCM itself be bad?
FOUND 456 RELATED QUESTIONS
Hesitation Issue, Car Running Poorly P03
Engine Missing Random Multiple Misfires Wh
March, 25, 2010 AT 3:10 AM
Check compression and injector for no.4 and 5
P0300 Random misfires normally point to vacuum leaks and contaminated fuel
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