Hey guys, I recently replaced my completely dead IAC and performed what I thought was a proper reset (according to youtube) on the new one. Started the car up the first time and it ran perfectly, started instantly and idle was perfect. Then the next day I go to drive to work, and the idle is funky again, as in I'd give the pedal a quick flick and the car would hold that idle or the idle wouldn't change between shifts. Got to work, did the reset again and sure enough same story, perfect idle until I drive the car for a bit or I turn it off and on again. Any ideas?

 

Sticky throttle body plates?? Sounds like maybe they aren't closing all the way after you've given it throttle??