WE HAVE RAN TEST ON THE CAR AND KEEP GETTING ...

  • Tiny
  • kat626
  • 2000 Mazda 626
  • 74,000 miles

We have ran test on the car and keep getting trouble codes of p0171 and p0174, and are lean codes, could this possibly be the pcm, would hate to spend the money if we don't need to.
thx kathy.

Tuesday, December 11th, 2012 AT 7:42 PM

1 Answer

  • Tiny
  • Docfixit
  • Expert
  • 18,991 posts

O2 sensors not switching are correcting a overly lean condition May have intake leak, restricted air cleaner or clogged /dirty injectors

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Tuesday, December 11th, 2012 AT 9:19 PM

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