97 GMC HELP WITH CODE READINGS

  • Tiny
  • Bradandkim2
  • 1997 GMC C1500

97 gmc pu 4.3 vortec v6, code p1406 egr valve pintle position circuit and p0101 mass air flow system performance. Idles fine but bogs down during accelleration rpms rise to 3500 struggles to reach even 25 mph. Egr valve seems to move freely after inspection any ideas?

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Friday, July 27th, 2007 AT 9:40 PM

1 Reply

  • Tiny
  • Kin Chan
  • MEMBER

Depends on how sure u wanna to verify a cpt failure.

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Saturday, July 28th, 2007 AT 1:20 AM

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