idle
when ever i turn the a/c or the heat on my car idles kinda crappy, somtimes it will drop really low then bounce back up past regular idle rpm's. when i dont have anything on it idles perfect but with the a/c or heat it idles kinda funny and also when the a/c is on it will "surge" a little bit on the highway..any ideas of why it would do this..i was thinking the IAC or even throttle positioning sensor but dont know really
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