C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

L98 IAC question

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Old Jun 26, 2008 | 07:09 PM
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1bigjim's Avatar
1bigjim
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Default L98 IAC question

I started doing my testing my my higher than noraml idle speed.
When you ground out the diagnostic link I can hear the IAC mortor running. I waited 30 seconds and it is still running. So my question is, will it keep running until I shut off the ignition or unplug the motor?
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Old Jun 26, 2008 | 07:11 PM
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janarvae
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I don't know the answer, but keep us updated on your progress. I have an idle of around 1500 that needs to be fixed soon. Someone suggested if the IAC valve is stuck fully open it gives a high idle.
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Old Jun 26, 2008 | 08:50 PM
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The IAC uses a stepper motor; I don't think it should take >30 sec for it to run the pintel its full range of motion??
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