I have 2 codes one is a random missfire and the.

Tiny
NFPKIDS
  • 2004 CHEVROLET IMPALA
  • 152 MILES

I have 2 codes one is a random missfire and the other is coolant temp is below thermostat regulating temp I was wondering what an cause these problems and how do.I fix them

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Sunday, December 23rd, 2012 AT 9:53 PM

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Tiny
SATURNTECH9
  • EXPERT
  • 30,638 POSTS

The P0128 is most likely a bad thermostat the random miss fire could be plugs wires dirty injectors etc.

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Sunday, December 23rd, 2012 AT 10:25 PM

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