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idle problems
A quick rundown.........recently bought a '99 Escort very cheap. The car has had the oil and air filter changed frequently but that's where it ends. Since buying the car I have done a little bit of work on it. Here's a list:
plugs
plug wires
oil change
antifreeze flush and change
serpentine belt
timing belt
Recently it developed a miss and I had the code read at Autozone. Ended up being #4 misfire. I replaced the coil pack first but it ended up being a bad injector. Well, I now have the car pretty much like I want it except for the idle. With the engine warm it idles around 1200 rpm. When I shift form Drive to Park it will rev up to just over 2000 rpm and then slowly creep back down. When Autozone scanned it and found the misfire it also showed P1506 which is an Idle Air Control (overspeed error). I cleaned the IAC valve first (found the info in a post on here) and nothing changed. Next, I swapped another used one on and still no change.
Has anybody experienced this before?? I'm starting to think this may be a ground issue. Thanks for any help.
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