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Chevrolet Truck, codes for all 4 O2 sensors came on simultaneously?

Tiny
BRDSMITH15
  • MEMBER
  • 1998 CHEVROLET SILVERADO
Had CEL with codes for all 4 O2 sensors come on simultaneously?
Friday, March 2nd, 2012 AT 6:05 AM

3 Replies

Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Anything else seem funny?
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Friday, March 2nd, 2012 AT 7:18 AM
Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Did you clear and see if they come back?
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Friday, March 2nd, 2012 AT 7:37 AM
Tiny
BRDSMITH15
  • MEMBER
  • 14 POSTS
The CEL turned off on its on today, still wonder y it would simultaneously show codes for all 4 02s at one time? Never noticed any irregualar performance.
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Friday, March 2nd, 2012 AT 11:51 PM

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