2001 Powerstroke
 

My 2001 Powerstroke with 185k miles is acting like it's running out of fuel only when going uphill. Motor runs but shudders bad and loses power. Is this a symptom of the CPS (cam sensor) going bad? I've only had the truck for two years and never had any problems before. Truck has full Banks programmer kit on it as well so it usually literally runs like a raped ape. Could it be a programmer problem? It's not throwing any codes and so far only acts up on an incline when I'm in it. Any info would be appreciated.

Hmmm