bad ecm
yes
probably cheaper to get another pro star 5 to 7 k if i had to do it
pull the line off the tank blow it forward
k31 is way to small good on a 430 hp motor probably timing is ecm
only sensor different from 3 to 4 is boost sensor just use your 3 harness on the 4
more than likely junk injector
Seat of the pants meter says 7650s flow better and cleaner than the 5915s same motor same turbo
there's 2 hot and 2 grounds that run back to battery box i had a international that had the ground ate up with the corrosion that did very...
probably a bad ground from ecm to battery's but id pitch the dd2 ecm and put a dd3 or 4 ecm on it
park valve on trailer is junk or contaminated most likely
id pull it if it don't leak forget about it and run it
what's the plans for this truck over the road ya better know how to work on it
almost sounds like a cut lower o ring on injector pull the exhaust manifold off look for the smoking hole
like Lester said fuel pressure is on the low side shim the pump up a tad
short answer their junk
looks like its going to need another overhaul
no idea but don't belong there
maybe its set to idel at 1000 when not moving
he's not trying to delete it mabe hes un deleting it help the guy out