So when my car is idling around 700-800 rpm (warmed up) and then I turn on the AC it goes to like 1200-1400 rpm and stays there, with just my headlights on, it jumps to a little over 1000-1100 rpm. With none of them if idles fine, any ideas of what it could be? Also sometimes from 1200-1400 rpm it will drop to 800 for a few secs, then immediatley go back up to 1200-1400. Could be my iacv going bad, but I'm open to hear other thoughts.