2000 Chevy S-10 OBD inspection code

Tiny
RALWELL
  • MEMBER
  • 2000 CHEVROLET S-10
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 33,000 MILES
This vehicle failed a inspection due to error code PO178Fuel composition sensor circuit low input. What does this mean and were is the part located on the vehicle? How much should it cost to repair
Monday, March 31st, 2008 AT 3:11 PM

1 Reply

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
It either telling you theres too much alcohol in your gas, or the sensor in the fuel line is NG or the wires, or the PCM, here's the tests to figure it out...


https://www.2carpros.com/forum/automotive_pictures/62217_P0178a_1.jpg



https://www.2carpros.com/forum/automotive_pictures/62217_P0178b_1.jpg

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Monday, March 31st, 2008 AT 3:20 PM

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