my car set for a week and a half when went to warm it up up it started reving form 1000 to 2000 rpms by itself. then the cel came on. i took it to autozone to have them read the codes and it came back with p0108- high input on map sensor, po122 low input tps sensor and p0505 iac malfunction. i took it to a friend to check out an unrelated problem and on the way the tcs light came on and everytime i let off the gas the car would shudder. i had noticed before all this every once in a while it didnt seem to have a lot of power on take off but it rarely happened. are all the sensors bad? maybe the throttle body? a bad wire?

 

I would take off your IACV (idle air control valve) and clean it, reset the ecu and see if you have any of the symptoms come back.