Hand valve is fully released, it ties into the brake light pressure switch. The Cummins schematic shows a 2 wire position switch going to the OEM...
I am currently working on a 2008 Pete 367. It has a Cummins ISX15. Initial complaint was that it needed a regen but would not do a parked regen....
I have a CAT CT660S. I have an active code of 3490-3. It is saying the after treatment purge valve is shorted to power. The coil on the purge...