Chuck p
Newbie
I bought a 98 1500 with a 5.0 ran when i looked at it. Picked up the next day fuel pump was out. Truck ran but poorly when i checked it. Changed fuel pump truck runs but lopes heavy. No cam in it but sounds like it. Smelt fuel found injectors were bad and leaking. Replaced spider still ran the same for about 5 minutes then cleared up and purred like a demon kitten. Drove truck 1 mile ran fine. Parked and qhen restarted back to loping. On live data stft at -31 both banks map at 20 when it clears itself up map at 10 fuel trim at -3 to 3 both ltft and stft. Have gotten code p0300 and p1351 only when it's loping. When its in that mood it starts and dies or tries to. When its in a good mood runs perfect starts quick no issues. The fuel system is new delphi pump new style delphi injectors. New crank purge map and ect sensors both ect. New egr new plugs wires rotor cap. New iac. New coil and icm. New O2 sensors as well. Only parts not replaced are maf iat and cam sensor. No cgamge when i unplug maf so i ruled that one out. All my grounds check good. There is no play in the distributor when i try to move rotor. . Im leaning toward either cam sensor or pcm. Tight on cash and wifes gettin tired of it not being reliable. Need help please i want to fix my baby.