idle flair is noticed on car? Rough idle? car will not idle? Erratic idle speed?

This are common symptoms noticed due to faulty IAC valve.

The car needs tune up.

In most cases idle flair is caused by a dirty and sticking IAC (idle air control valve) and will car run too many miles (IF) then I would start with removing it from the throttle body and try cleaning it real well with some carb cleaner and while your in there also clean the throttle body bore and plate. I would also take a close look at the PCV supply line where it connects to the back of the upper intake and make sure the rubber elbow isnt rotted out and leaking.

After cleaning it remove the negative battery cable for about 10 minutes to reset the PCM.

This details will help.

Thanks.

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