So I need help my duramax 6.6lly shut down on me driving down the highway it's been idling real rough I ordered an injector rebuild kit from bitterrootdiesel.com but I cant find any kind of video to show the removal of all injectors. I've heard about the ice pick trick but haven't seen it done. My buddy hooked it up to the computer a couple weeks ago and fuel rail pressure is not where its supposed to be. I've had to start it with starting fluid to stay on the road but now when I do that it'll fire and shut right back down. Before I get into the 400 dollar kit I wanna make sure it's the right thing to do. Please help me.