LT1-LT4 Modifications 1993-97 Gen II Small Block V8

IAC question

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Old 09-01-2008, 01:07 PM
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ok i have been chasing a really bad idle with my car. my questions is, is there a way to put voltage to an iac off of the car to test if it is working or not? i was just messing with the car and noticed i can unplug the iac with the car idling and it has absolutely no affect on the way it idles. i did have to move the throttle blade a tad bit in order to get it to hold an idle. shouldnt there be some sort of change in idle characteristics with the dang thing unplugged?
Old 09-01-2008, 01:12 PM
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you may need a new valve..I replaced mine and it ran great afterwards...mine was suriging alot with the bad valve



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