Question about 1998 Pontiac Sunfire

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Pontiac sunfire gt idle rate..

Hello,

just wondering if the idle rate for a sunfire gt can be adjusted, i find it idles a tad rough when in drive and stopped at a stoplight,

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I had rough idle on my 2000 Pontiac Sunfire and found out that the rubber line to the MAP sensor, that sits to the right of the throttle body, was rotten. I replaced the rubber line (sells by the foot at any auto parts store, cost a few cents) and the idle has been locked at 500 rpm ever since.

Posted on Mar 10, 2013

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Hi if you have the metal intake there is a torx screw adjustment behind the plastic cover for throttle cable. in = more idle rpm and out =less rpm hope this helps


Ray

Posted on Dec 23, 2008

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