1996 Chevy Silverado Running too rich after O2 sensor chagn

183,000 MILES • 6 CYL • 4WD • AUTOMATIC
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CGDIV
  • MEMBER
  • 1 POST
A computer scan after the check engine light came on indicated a bad O2 sensor. I replaced it. Shortly after it began to loose power, difficulty accelerating, etc... Check engine light again came on, this time saying too rich.

I disconnected battery to clear computer. Ran fine for 20 or so miles then began to act like it was too rich again, but the light has not come back on.
Jul 30, 2008 at 6:09 AM
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RHALL77
  • ✓Experienced Mechanic
  • 3,361 POSTS
check and see if there is a injector bleeding down. does it misfire when you are first starting it in the morning
Jul 31, 2008 at 12:03 PM
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