Check engine light has shown 4 cylinders all.

Tiny
MARKHUGHESGEROW
  • 1991 SUBARU FORESTER
  • 100 MILES

Check engine light has shown 4 cylinders (all) misfiring. And O2 sensor shows in code as well.

I have replaces clutch recently, and replaced plugs and wires. Still mis-firing. Engining constantly bucking. Really effected by cold weather.

what may be wrong. What course do I take next?

my mechanics are throwing their hands in the air.

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Wednesday, January 23rd, 2013 AT 11:48 PM

1 Reply

Tiny
ASEMASTER6371
  • EXPERT
  • 25,554 POSTS

You need a new mechanic. Have them check the crank sensor for the missfires. The o2 sensor will go away when the missfires are fixed.

Roy

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Wednesday, January 23rd, 2013 AT 11:49 PM

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