[bestgenman]

You are correct in “no fuel”,  the correct approach, from my viewpoint, is to look at fuel pressure aft of the lift pump.  This can be accomplished by adding a fuel pressure gauge (pressure won’t be over 10psi and more like ~5) at the fuel water separator filter head.  Just be sure it is plumbed after the lift pump.  Most sets in Newells have a prime switch which will run the lift pump.  If not, run the engine and observe the gauge.  I suggest leaving the gauge permanently installed, eliminates a lot of headaches.

In some rare cases, the injection pump stop solenoid hold in coil fails after being energized for a while.