Hi I'm new here I have a big problem I shut off my truck and then went back later to start it and it cranks good just won't start I have between 15 and 18 psi on fuel new lift pump and about a year old in pump I have check all grounds check the ecm have power to it and power leaving going to sensors I can disconnect the in pump and put 12 volt to it and it will start right up and idle I don't know what is else to try before I just start buying parts any help would be appreciated

 

Have you tried swaping your fuel relay?

 

Yes I put new relays in and then swapped them around still won't start

 

Check this link out VP44 Diagnostic Scroll down to no start test #2.

 

Thanks have done that and I can make it run by putting 12 volt directly to the inj pump with a inline fuse and make the truck idle when I installed the plug back on the in pump it just cranks I have checked the voltage on the 50 pin connector on the ecm for grounds and 12 volt all there and have 5 volt leaving the ecm to the sensors have 2 volts on the buss and know im lost don't know where to go from here

 

Hey brother check your fuses in the dash i had a problem a lot like that. I believe it was a 10A fuse #9, my overhead display read Ccd it would turn over all day just didnt have fuel, it never even primed. Good luck to you sir!

 

Thanks for the help finally found the problem it was the fuse for the door locks it some how ties in to the anti theft took it to the shop and the scanner said fuel was shut off due to anti theft put the fuse in and started right up hopefully this will help someone else if they have the same problem