I am new to diesels and just bought this 99 which ran when I went to pick it up. It started really slowly like the batteries were dying but still ran. I got it home and realized the crankshaft sensor wasn't even plugged in. This was the reason the batteries were not charging. I replaced sensor and started looking around and found alot of unplugged wires in the engine compartment. Tried to start and lift pump was not pumping just making noise. Replaced lp on side of block and got pressure to vp at banjo entry. cracked lines to injectors and there was only a little dribble from any of them. Still no start. My question is: is there a way to rig these trucks to run without controls and with a bad vp just to sell? Or is my vp still good and some other sensor is causing the vp not to work. Thanks for your time and the best resource for these trucks.

I don't have a scan tool to hook up to the cummins diagnostics ports. I am thinking my ecm is bad. If it is, what is the best rout to take as far as replacement or having it rebuilt.

Go to Chrysler, buy a new one. It costs the same in the end, and it will work. Plus, the Chrysler one has a 2 year unconditional warranty. So, if you have another electrical bug killing ECMs, you have two years.