P1506 - Idle Air Control System At Adaptive ClipCheck for vacuum leaks and clean the throttle body, maybe check the iat and maf sensors.
Trouble code P1506 means: Idle Air Control Overspeed Error
Trouble code P1506 means: Idle Air Control Overspeed Error
Trouble code P1506 means: Idle Air Control Overspeed Error
Trouble code P1506 means: Idle Air Control Overspeed Error
Idle Air Control Overspeed Error
Answer I have a 02 ford escape, and it is doing the same thing your ford escort doing.( overspeed error.) well anyway I was told it is a faulty vaccum harness tube assemby. haven't tried it yet, but thats on the list. cause I've tried everything.Replace the IAC valve.,Well, no disrespect but that IS WRONG. I am currently having this issue myself. I have replaced the IAC, AND the ECM (or some call it the PCM). Guess what? STILL SAYS IAC overspeed error!!!!! Could be anything from a bad head gasket to a vacuum leak.
Error code P1506 is for the idle air control overspeed. Remove the idle air control valve and clean it with carburetor cleaner and check for vacuum leaks. If the problem persists change the valve.
That code is an idle air control overspeed error. It means that the engine idle is out of factory specification. Sometimes the Idle Air Control may have carbon built up so clean it and if that does not fix it, replace it.
p1506 is an IAC (Idle Air Control) error code that comes on when your on-board computer senses an undesired Idle RPM.
Code P1506 - Idle air control valve over speed error
Look for a vacuum leak...
Trouble code P1506 means: Idle Air Control System RPM Higher Than Expected