I HAVE A CODE P1174 WHICH TELLS ME TO REPLACE ...

  • Tiny
  • Anonymous
  • 2007 Chevrolet HHR
  • 90,000 miles

I have a code p1174 which tells me to replace the 02 sensor which I have done but my check engine light won't go away. I've also replaced the spark plugs. Any ideas?

Saturday, February 16th, 2013 AT 4:54 AM

1 Answer

  • Tiny
  • caradiodoc
  • Expert
  • 24,972 posts

P1174 Fuel Trim Adaptation Inactive Bank 1 Malfunction

Fault codes never say to replace parts. They only indicate the circuit or system that needs further diagnosis. Your mechanic will connect a scanner to view live data, then watch what the oxygen sensors do in response to introducing extra fuel and extra air.

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Saturday, February 16th, 2013 AT 10:37 AM

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