2003 Mazda Tribute Now what

2003 MAZDA TRIBUTE
85,000 MILES • 6 CYL • 2WD • AUTOMATIC
Avatar
BEANIEMIKE
  • MEMBER
  • 1 POST
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?
Mar 25, 2010 at 3:01 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement