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Message: <blockquote data-quote="Bullitt5339" data-source="post: 920371" data-attributes="member: 13030">You guys are all over the place on this one........lolVerify it's not the IAC before moving to the TPS or adjusting the set screw.  Mine was doing the same thing, and it was sticking.  A quick test to see if it's sticking is to rev it up and while it's stuck on high idle, tap the IAC with the plastic end of a screwdriver.  If it immediately drops back down, the IAC is sticking.  You can try to clean it, but that's never a definite fix.  As someone mentioned before, the correct way is to replace it.Then move on to checking the TPS sensor.........Then move on to making sure the set screw is correct.......There's no reason to try 4 things at once.  Check one out at a time, from the most likely to the most unlikely.  Eliminate them one at a time as a possible cause and move on or else you could make things even worse.</blockquote>