Got a small problem.
I did an Escape throttle body swap about a week ago and everything worked out fine, results seemed pretty good etc but, I hadn't been driving my truck much untill the last couple days.
If I reset the computer the truck drives perfectly normal for like 15 miles then I get a CEL 1506 and 1504 and it starts idling high at stops (between 1300-2000rpms). I changed my IAC thinking that I could have messed it up during the process but that didn't do any good, still getting the high idle and CEL.
The 1506 CEL is IAC overspeed error and the 1504 is IAC possible vacuum leak. I took everything back apart and check all my connections and gaskets and it all looks fine so I'm kind of stumped on this one. If anyone has any ideas I would be greatly appreciative.