Truck came with a Pedal Commander installed. Was going to just leave it and maybe use it in eco mode on longer trips.
Spun the tires the other day and truck gave me a wrench and went into limp mode. Pulled into a parking lot, shut the truck off for a minute, then restarted it and it behaved normally.
Pulled the code when I got home and it was "P2138 - Throttle/Pedal Position Sensor/Switch 'D'/'E' Voltage Correlation"
Seen a similar code while playing with Pedal Commanders before and changing settings while going down the road. Cleared the code and waited to see if it'd do it again. A day or two later it did. So, pulled the P.C. out of the truck as that's probably the culprit and will be seeing if it happens again