I bought this car with a ton of codes. Finally cleared them all, but now the car is idling at like 1800-2000rpm. No CEL, I’ve replaced the IAC three times. The factory IAC was shot, pep boys was making a hiss, and the Duralast seems okay... I cannot find any vacuum leaks, I cleaned the throttle body. IAC is showing 12v and TB showing 5v. And I already cleaned the MAF. I did notice if I unplug the IAC, I get absolutely no change in idle. Anyone have any ideas on what to look for next?