Rich, I have contacted Silverleaf and the system simply monitors output generated from the engine sensors. I believe I have isolated the problem. It is with the speed sensors on the Cummins engine. Now, I am trying to determine if I can replace the sensors myself or do I go to Cummins.
Does anyone know the location of the speed senors on the ISC 350?
Based on my early research, i believe there are two (not sure).
Thank you for your help. Ben