Cummins ISL CM2150 shutdown on grades

[tree98]

You need to pull the program and send it to Rawze. He'll tell you if it's good or bad, most likely it's bad. There's no sense in doing anything else with it until you fix the program or confirm it is not the problem.

Also you need to buy an inline adapter and get the cummins insite program in order to work on these engines. Aftermarket scantools and diagnostic software that's made to use on all engines will leave you guessing if the data your reading is even accurate.