If you do get it started, ramp the rpm's to 3000 and let off the throttle. If the rpms hang for 5 seconds or more, got injectors over fueling. Then it's time for the dealer. BTW, it's going to be around $4000 to have all 6 injectors, tubes, and rail pressure relief changed out.

if it is the injectors should i replace all 6 or just the ones that r bad

Any updates?

They can do a test to see which are bad and which are good.

Update please

its still having problems if it sits for a couple days you need to give it a little shot of eather and it will fire up and run good i took it to the diesel garage near me and shut it off and they went to start it cranked a couple seconds longer then fired with no either then they let it sit for a couple days now it wont fire this is giving everyone a headach

the lift pump sounds weak...........go after market man, Airdog or Fass will do ya good

the lp is putting out 6 pounds of fuel pressure. brand new i read it should b 8 lbs

Any updates??

If it's hard starting after sitting, you got injectors leaking down, or you got air intrusion somewhere between the lift pump and the CP3. Could also be the fuel limiting valve is shot, cascade overflow valve is sticky/full of crap, or the FCA is getting weak.