I can't figure out what's causing the code. I've replaced the throttle body with a new one from ac Delco compete with sensors, and the intake manifold gaskets. Can't find any sort of vacuum leak anywhere. I've taken it on a few drives to try to get it to relearn the iac but that only seemed to make it worse. It's currently idling at about 1200 before it was only 1000. Any help would be greatly appreciated I'm running out of ideas