I thought I may have seen a post awile ago about this happening but I can't remember.

Driving home from work today and noticed my truck had no power, looked down to see my CEL on. Pulled over and turned the truck off, then started it and truck ran fine, no CEL. Got home and used my edge to run the code and it said I had a P2106 throttle actuator code? That does that mean? Thanks guys!!!

 

P2106 means the PCM detected a fault with the electronic throttle control and went into fail safe mode.

Get the codes checked with a real scan tool. P2106 doesn't usually set by itself.