I have a 2004 6.0 thats a no Crank no Start . First what was intially wrong was a crank no start after new oil cooler, injector harness , new ICP and IPR. Along with a new Y -Pipe . Once that work was done and I got it all back together all injectors were buzzing unlike before the new harness but it would not start. Scabguage 2 was reading a buildup of only 480 max PSI ICP pressure with a max of 77 on IPR. I checked to make sure it was getting oil into the filter housing and it was. I took out the IPR and ran shop air in and it held so no leaks. I then ran wires from the battery to the IPR and it cranked for the first time since the procedure. Here is where I really screwed up. When I put the pigtail back on the IPR I think I got the wires crossed.Well actually know I did and once I put them right I now have a no crank. No injector buzz when the switch goes on to run. Glow plug light stays on alot longer than normal and when you try to crank its like it kills the power to everything. So I turned the switch off and checked it under the hood to see if it would crank at least by arching it t the battery and it does. Now Im lost on what to do next.I checked the relay under the hood but it doesnt look burnt. ???????