Hey guys update time , we got to the machine and the mechanic decided to do some more in depth checks before diving into the injectors , we checked rail pressure and was only getting up to 1700 psi with spikes of 2400psi, disconnected the rail and connected the Guage to the high pressure pump and was seeing pressures of 6000psi and up ,we then checked the pressure relief valve we found some debris so cleaned that up and the rail (I'll replace soon) we then reconnected and checked pressures ,same values ,the mechanic put the pressure Guage on the number 6 cylinder and we started to progressively blank the rest of the lines and after we did 2 the pressure shot up to 3000psi which led us to believe more was leaking off. Changed the injectors and installed the trim files and voila machine started on its own first time and in 1 tumble after that , even tried to dig and it felt like a completely new machine .
Must say thanks to nige ,ahart,heymcall , simonc and everyone else who gave some advice it was well received as I'm still learning on this job . Hope someday to return the valuable help you guys offer here