My car idle's at 1500 and won't slow down even when it warms up.

1997 SATURN SC1
142,000 MILES
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ZIPPY44
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  • 1 POST
The code is misfire 01, I have replaced the plugs and the wires. I clear the code and it will idle fast but seems to run rough, as I accelerate it runs fine at highway speeds and when I slow down the service light comes on. The car still gets around 40 mpg. it just won't idle down.
Apr 22, 2012 at 12:41 AM
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FIXITMR
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check IAC and look for vacuum leaks.
Apr 22, 2012 at 1:38 AM
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SATURNTECH9
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Just to add to this one check the hose that runs from the pcv to the intake.Its a short hose that runs from the intake manifold to the valve cover.See if its colasped or has holes in it very common on that car for a damaged leaking hose.Sounds like a vacuum leak though.
Apr 22, 2012 at 3:29 AM
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