Question about 1995 Pontiac Grand Prix

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Car idels at 2-3000 rpms replaced postion sensor,map sens

Car stars and idels @2-3000 rpms replaced idel control map sensor no vacum leaks

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  • zachthepimp6 May 22, 2009

    also the iac and the tps are new both changed 3 months ago i set the iac in wrong with out takeing the old "o ring" out and we ran it 2 months be4 the garage noticed that could that ruin the iac totaly?
    1995 grand prix 3.1
    high idle car can get up to 60 mph with out touching the gas pedal

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  • Pontiac Master
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Faulty throttle position sensor, or idle air control valve.

Posted on May 21, 2009

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  • Contributor
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Ok so on the intake (drivers side of car) there is the throttle cables. where you find the throttle cables, there should be a very small screw. take this screw and back it out as far as you can unscrew it. this will lower the rpm's

Posted on Jul 26, 2009

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  • Pontiac Master
  • 5,501 Answers

By idle control I imagine that's a throttle position sensor. On some of the TPS controls there are screws which allow a small adjustment to base idle. There may also be SET screws on the opposite side of the throttle body. I would check the part and see if you installed the right part. You may have been sold a part for a 6 cylinder instead of a 4 cylinder for instance. The map sensor may be adjustble. I'm not familiar with that exact car.

Posted on May 21, 2009

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1 Answer

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