Very little boost,running bad and cut off?
Got in my truck this morning and drove to the gas station to get some diesel,ran fine one the way there,when i cranked it up to leave and pulled out and it had no power and it would barely make 5psi of boost and would go no higher. The more throttle u gave it the worse it would want to run,after driving it for a few miles it started to run better and started making boost again but it was in and out and would run bad,did the same thing all day and i was coming home it started runnig real bad and just cut off and would not crank,tried it about 30min later and cranked up,but still runs the same. Anyone got any thoughts on what is wrong? Thanks