That is weird its only when the clutch is in it idles up. Basically the Idle air control motor is what controls the idle speed unless things are so far out of bounds like massive vac leaks or stuck throttle linkage/cable/pedal. The IAC is located on the throttle body as well as the throttle position sensor. If you unplugged any of these when working on it and turned the key on they may need to be reset we'll say. Unhook the battery and let it sit a while which is supposed to completely nix the computers memory. Some say also take the + battery cable when disconnected of course and touch it to a ground somewhere to kill off any parasitic voltage in the system. Post up what you find, were all curious and learn from others delimas ya know.Ok so I’ve once again gone threw the Jeep looking for vacuum leaks, replacing two hoses that didn’t seem bad but I didn’t want to chance it, also replaced the, O2 sensor, the MAP sensor, idle airflow sensor, an the throttle position sensor, with no change, I’ve also disconnected the battery an left it out of the Jeep over night then reconnected it with no change, start it up it idles at 1400 rpm, then start driving an as soon as you push in clutch it will jump to 2000 rpm until you let the clutch out an it goes back down also don’t know if this connected my radio quit working