1991 Chevy Corvette High idle rpm's

1991 CHEVROLET CORVETTE
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KEN GRACE
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Engine Performance problem
1991 Chevy Corvette V8 Automatic 75,800 miles
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The car idles extremely high for 15-20 minutes then it will idle back to a very low idle. Some times after sitting for a few minutes when I restart the engine idle aganin runs high. Some times I have to keep my foot on the accelerator while sitting at a red light. I have tried every thing I know. Changed plus, wires, rotor, checked timing, replaced idle air control, changed EGR when I retrieved a code 32. I'm baffled.
Thanks in advance Ken
May 27, 2008 at 8:26 AM
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MERLIN2021
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The other half of the code 32 is the MAP sensor, and is the likley cause of your trouble.
May 27, 2008 at 8:44 AM