HIGH IDEL

1994 Pontiac Sunbird

Tiny

brandop

March, 19, 2010 AT 2:24 PM

Engine Performance problem
1994 Pontiac Sunbird 6 cyl Two Wheel Drive Manual 130000 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.

3 Answers

Tiny

legitimate007

March, 30, 2010 AT 10:32 PM

Change the pcv valve and check/change the mapp sensor, you may also want to take a look at the egr. All possible culprits.

Tiny

Jim Shirron

June, 21, 2010 AT 7:40 AM

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.

Tiny

legitimate007

June, 21, 2010 AT 11:30 AM

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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