I had a bluetooth installed at the dealler today. A few 30 miles later I get code P2138 APP. I dont know if the blue tooth has to do with it (dont think so) but I cant clear it with the 6-gun, and I have reduced power.
I can put the fuel pedal to the floor (truck off, key on) and the throttle pos. % ramps up slow. A few days ago I washed the motor, simple green and a hose.
Anybody have any ideas.

ill check tommorrow at work.

DTC Information
Code: P2138
Modules: ECM, PCM
Description: Accelerator Pedal Position (APP) Sensor 1-2 Correlation

The dealer replaced the APP sen. they said it was 30% off. now it is 18% off, so they are still "tracing the problem".

So now the dealer says 4 of the prongs on the PCM are burnt, and they are replacing the PCM. He says it happens, rare but it happens, anyone know what would cause that? Where is the PCM, Under the hood or in the cab?

PCM is replaced, all is well. Thanks for all your help

glad we could help, (I think?).