O2 sensor low power

2000 CHEVROLET TRUCK
196,000 MILES
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DMELLLMER
  • MEMBER
  • 2 POSTS
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?
Oct 12, 2011 at 9:31 PM
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RASMATAZ
  • ✓Experienced 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.
Oct 12, 2011 at 10:07 PM
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