i have a 1997 ford powerstroke and about a month ago going down the interstate it started to randomly lose power real quick like your foot slipped off the pedal. it would go back to running normal then it became more frequent and a couple times the accelerator quit working then i would put in the clutch and get my accelerator back i pulled over and played with the relays on my fuel pedal and it ran fine. it started doing this randomly yesterday. its not blowing white smoke so i dont think its an injector and i recently replaced my cam sensor. any ideas???