idle races up and down for 15 sec then idles fine does that every now and then on 1996 Chevrolet Corsica

also you have to push gas pedle a little for it to start it runs fine plenty of power idle racing up and down getting more often

Asked by for the 1996 Chevrolet Corsica
sounds like an idle air control motor. have it checked to verify.

had the idle control motor replaced today didnt help it at all any more advice
did they make sure the passage was clean of all carbon??

they said they cleaned it was dirty weather to beleive or not he put the old one back on and didnt want to throw parts at it told me to bring it back if check light comes on but it wont and never came on supposed to be a good auto shop