I got a 04 f150 5.4 and ive ran into trouble and im not sure whats the problem. So im up in the snow right now and every time i start to go threw some thick snow my tires start to spin out and my truck shuts off on me. It only does that when i really give it some gas and my tires are spinning. Could it be the throttle body?

 

The truck has a Gryphon programmer, and is popping codes:

P0553 (P0553 Ford - Power Steering Pressure Sensor Circuit High Input)

P2105 (P2105 - Throttle Actuator Control System - Forced Engine Shutdown)

P2106 (P2106 Ford - Throttle Actuator Control System - Forced Limited Power)