We have a 2004 king ranch 6.0 crank no start. had studs and egr delete done some time ago. owner says its a bear to start when cold. then it wouldnt start at all. took to another dealer and they said only building 103 psi hpo. I got it now and it has p0198, and all passenger side bank glow plug circuit codes. i tried another gpcm and codes didnt go away. I put a new IPR in it to see if it would start, and now im building 1,300 psi oil, ficm sync good, ficm Mpower good, when its cranking it bellowing white/grey/black smoke from tailpipe. it acts like it wants to start but just wont. we checked fuel pressure with homemade gauge it it goes over 100psi koeo, then after 18 seconds of key being on you hear the pump like shut off or sucking. the fuel press drops..
any ideas.
BTW jerry (rig) him self has been all over this truck