Truck passed dyno. However, Cummins reported that it threw an aftertreatment code during the dyno. They did a parked regen and that cleared the code. We drove the truck back from Cummins and reported that it was again asking for a parked regen.
Can anyone offer any help?
2012 VNL780 Cummins ISX 400 HP (Aftertreatment/Regen problem)
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by InRoadsOne, Jun 22, 2018.