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Message: <blockquote data-quote="Lee12609" data-source="post: 776101" data-attributes="member: 12415">what year is your car? Madstang, what rpm does your car idle at with the a/c off?? i'm guessing the IACV is raising the idle like its supposed to when the a/c is on. if this is the case and the slightly higher 50-100rpm higher idle cures the idle problem you can fix that with the SCT you have coming. dont try to set the idle higher with the throttle stop, thats a waste of time.you can make an IACV restrictor plate to cure the hanging idle, or if you want to wait a few more days i can make you one and send with the injectors for no charge, but i dont go back to work until friday, let me know. i've had to do this on both of my SN95s.</blockquote>