2001 Pontiac Grand Am hi idle

2001 PONTIAC GRAND AM
170,000 MILES • 3.4L • 6 CYL • FWD • AUTOMATIC
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QUEENB
  • MEMBER
  • 1 POST
Hi idle all the time only code I got was o2 have replaced iac and tps have also put new mass air flow on it and replaced upper one lower intake gasket Others on her have same problem with no fix please
I've spent to much money as is need help
Dec 21, 2014 at 8:38 PM
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HOMER1967
  • ✓ASE Certified Mechanic
  • 875 POSTS
  • ASE Certified Mechanic
this vehicle has a very high pcm failure rate causing the high idle concern.very high.if you do not want to have or can not afford to have it diagnosed by a shop,based on what you have tolds me and already replaced,i would try another pcm.
Dec 21, 2014 at 9:42 PM
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