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2002 Chevy S-10 engine check light

Tiny
SHARRIS8302
  • MEMBER
  • 2002 CHEVROLET S-10
2002 Chevy S-10 4 cyl Two Wheel Drive

the code p0179 keeps coming on, fuel composition sensor circuit high input. I dont know what that is or how to fix it.
Wednesday, September 30th, 2009 AT 1:16 PM

1 Reply

Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
Appearently yours has flex-fuel. I have had the same vehicle in with that code & it was the sensor. It is located on the rt frame rail by the back of the wheel opening. Follow the fuel lines down and you will find it. Also called a flex fuel sensor.
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Wednesday, September 30th, 2009 AT 2:35 PM

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