Problem with CPS?
Help! I've got a 1999 F250 7.3 with 122 thousand miles. Last few years it would infrequently surge violently usually when cold and first taking off. About a month ago it started doing it continually and stalling whenever I slowed down, also the SES light would come on (until restarted). I have an 2004 Superchip that I leave on Towsafe and when I returned the truck to stock settings it ran better but still sounded terrible like it was missing. DTC gave me P0603, I had the CAM sensor replaced. It stalled a few times initially but overall ran alright even with the Tow safe reinstalled for a couple weeks. Now I'm getting P0603 and P0644 and its stallin and running rough again with intermittent SES light. If this sounds like the CPS how do I know I'm getting a newer (improved one). Any advice? Thanks. John