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Cummins 5.9 code 731
Posted to HD/Fleet Forum on 10/7/2009 11 Replies

Just installed a reman factory engine in this bus, 2004 5.9 w/high pressure rail.

I got smoke out the exhaust but no start, active code 731 everytime I crank, I swapped cam/crank sensors, problem stays w/cam sensor, wiring good. pin 1 5v key on pin 2 ground ... Login to read more.

11 Replies Received (View Replies)