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O2 sensor low power

Tiny
DMELLLMER
  • MEMBER
  • 2000 CHEVROLET TRUCK
  • 196,000 MILES
My check engine light came on so I hooked up my Snap-On scanner. I'm getting a code for O2 sensor low power. Can you tell me what that means and what I could do to fix that?
Thursday, October 13th, 2011 AT 4:31 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Your A/F mix is lean following will caused it

1. Vacuum leaks
2. EGR and PCV valve.
3. Low fuel pressure.
4. Dirty fuel injectors.
5. Mass Air Flow Sensor.
6. Oxygen Sensor.
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Thursday, October 13th, 2011 AT 5:07 AM

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