Hello please advise of the following
Mileage of engine
Mileage of pump and injectors if ever replaced
Does it ever throw a low frp pressure during power enrichment code? While pulling a load?
The reason the engine starts right up with ether is that the ether increases cranking rpm allowing more fuel flow to be sent to engine. When you reply I will try to help
Thanks
Dustin

 

Dustin my name is rod and I am interested in your advise as I am having the same issue.

---AutoMerged DoublePost---

I'm not throwing any codes except a transmission code and I have been getting the shift range inhibited a lot when shifting into drive and reverse.

 

your nsbu switch may be going bad. easy to replace

 

Dustin, here's one for you. 03 approx 200k no programmer isn't throwing any codes. New rebuilt injectors,no start, saw filter housing was leaking fuel, new filter housing, new glow plugs. Truck will NOT start without starting fluid. Hot or cold it don't matter. Give it a little fluid and to me it still cranks a little longer than it should before starting, but will start you can drive it get motor good and warm or shut it off right away either way it will not start. My next thought is crank or cam sensor maybe? It's got me running out of options. Thoughts?