1991 Subaru Forester Check Engine Light Shown 4 Cylinders Misfiring O2

1991 SUBARU FORESTER
100 MILES
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MARKHUGHESGEROW
  • MEMBER
  • 1 POST
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.
Jan 23, 2013 at 3:48 PM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 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
Jan 23, 2013 at 3:49 PM
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