Can too much fuel pressure from pusher pump to injector pump cause it not to start? I put new carter pump on truck and after bleeding injector pump and injectors (it still wont start) it buries my fuel pressure gauge (hooked to schrader port). Dont know if I need a pressure regulator or I'm just spitting in the wind. This has been a very aggrevating time with my truck that has performed flawlessly for 11 years and now for almost 3 months has sat in my driveway while I try to get it to run. Replaced fuel tank sending unit, pusher pump and injector pump and it still wont start.I did get a 1694 code the last time I tried. I'm at wits end and hope someone can assist me

 

vp pump does not like fuel pressure on start up my fass pump is controlled by a pigtail and a relay that is controlled by the factory fuel pump controls this allows for it to act just like a factory lift pump as for the trouble code its a "no ccd messages recieved from ecm" so i would advise cracking your water drain as your cranking it if you have fuel pressure then you are on to something thats my .02 hope it helps

 

Will the truck run if you standalone the pump?

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Havent tried it yet but will this weekend.

 

25 psi will kill your vp44. It will stall

 

Ive tried everything and it still doesn't start. Called Dodge dealer in Hagerstown and am having it towed on Tue for them to troubleshoot. Costly tow bill and troubleshoot fee but dont see any other way. As a follow-up I just went out and tried it again and got a P0102 (tps) code. This is the first time in months of trying to start it that this code had come up. What gives?

 

Dunno... but keep us posted on what the final solution is. We'll all like to know so we can prevent it from happening to us in the future.

 

Well here it is. After replacing fuel tank sending unit, pusher pump and injector pump, checking all wiring, etc. bleeding injectors no less than 15 times----it was my ECM that had gone south for the winter. New ECM and truck runs like a champ.

 

If you had ran the pump in standalone as I suggested you would have determined the ecm was the cause before switching any parts!

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I appreciate your suggestion but at the time you made it I had already switched all the parts before posting.