I have a 2000 e-450. Had a 1316 code. Idm code. Replaced both uvc harness and it ran fine for a week. All of a sudden it threw another 1316 code and a glow plug relay code. The van still ran for about 3 days but not 100%, then the drivers side bank quit working. Replaced the glow plug relay and the drivers side uvc. And the bank still won't fire. I got my parts from international so they should be good parts. The gaskets were also just replaced and still look good. I have the valve cover off the head and can watch everything move and notice the injectors arnt shooting any oil. Would this be a function of no power to the injectors or no oil getting to the injectors? Or both. Any help would be appreciated.