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1994 Pontiac Sunbird high idel

Tiny
BRANDOP
  • MEMBER
  • 1994 PONTIAC SUNBIRD
  • 6 CYL
  • 2WD
  • MANUAL
  • 130,000 MILES
My car is running at a high rpm I have problems starting it and I have changed my fuel pump, spark plus, spark plug wiring, coils, fuel pump relay, fuel fillter and nothing has changed it revse to 3000 rpms I have to start it with eather.
Friday, March 19th, 2010 AT 2:24 PM

3 Replies

Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
Change the pcv valve and check/change the mapp sensor, you may also want to take a look at the egr. All possible culprits.
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Tuesday, March 30th, 2010 AT 10:32 PM
Tiny
JIM SHIRRON
  • MECHANIC
  • 77 POSTS
I'll bet your IAC is either stuck or has quit[idle air control motor]. Have you or your tech checked that? Sometimes it can be removed and cleaned with success.
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Monday, June 21st, 2010 AT 7:40 AM
Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
That too. You may also want to clean the throttle plate too, if its carboned up, then it can stick open or closed
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Monday, June 21st, 2010 AT 11:30 AM

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