I know a lot of guys in this forum have issues with the 2500 and 3500 cummins ecm. Well I found a guy in Michigan, his name is Jeff and he works at Ecm Outlet. I sent him my engine computer mounted to the engine block of a 5.9 diesel. It took 1 week to get it back and now it's working like new and I even think I'm getting better gas mileage. My original problem was the fuel pump not coming on. Apparently the ecm controls it. Those guys saved me almost nine hundred bucks.