Ok I'm back! Got kinda side tracked on another project.
Checked the Ground cable where it connects to the frame. Cleaned it as it was dirty and appeared to not be making good contact. Got in motor home and after 2 days of not starting it fired over and was running instantly.
Shut off before engine got heated up and installed Fuel pressure gauge. It showed 0 pressure as I had relieved the pressure by removing the little valve stem in the schrader valve.
Connected the fuel pump gauge and turned on the key . Gauge went immediately to 39 pounds then dropped pretty quick to 35 pounds. It stays there for several minutes. After about 15 minutes went back to check it and it was still at 28 pounds.
Now I turn key back on and it does same thing.Then I try to start the MH and the gauge doesn't move at all. It stays on the 35 lbs.
So Still no spark. I would try the hot wire trick but need to do some searching on how to do that.
Also I will try and locate the ecm switch and figure that one out.
I will follow up later.
Dad