Recent content by jbrett

  1. J

    lbz to a lly engine swap -- no start condition

    I have checked all of that and i know the cp3 isnt bad it was in the truck on the lbz 3 days prior running with excessive blowby. And yes when watching the computer when cranking it starts at about 144 psi then builds up to approx 8500 thenstarts dropping back down.
  2. J

    lbz to a lly engine swap -- no start condition

    I changed the reluctor ring and gear that problem went away and the low fuel rail pressure started never threw the P0087 before i changed the relutor ring. what i don't understand everything ive read has said it only takes 2500psi to fire and im getting between 6,000 and 8,500 on the scanner...
  3. J

    lbz to a lly engine swap -- no start condition

    I have a 2006 C4500 had a running lbz in it with a hole in the piston. pulled it and put a lly in and all my lbz components on it accept the injectors. It is throwing the P0087 code for low fuel rail pressure can give it a shot of starting fluid and it fires but will not fire on its own I am...