1994 Dodge van cutting out question OT

Yeah, I know, NOT a tractor. Well, I bought this d*mn van as part of a trip that involves getting rid of MANY old tractors - so it is loosely connected.

Here's my story and problem. I now live in northern Michigan but had to come back to central NY April 1st. Got to spend a month here cleaning out my property that is selling on May 1. In Michigan - I could not find a van to rent one-way like I did another time. So I bought a van with intent to drive it one-way, and then sell it here in NY. I found a 1994 Dodge B250 van with a 3.9 V6 that was just driven to MI from Texas. 135K miles and NO rust anywhere. Paid $650 for it. I put new brakes and tires into it and drove it to NY. ZERO problems. After driving 800 miles pretty much non-stop except for gas - got to my place and parked in the driveway. Well, actually had to spend an hour first digging snow by hand to get in. Anyway, parked the van. Next morning - started it up, and tried to back out and up probably the steepest hill this van has ever been on with the rear being the high part. It suddenly died -just like I had shut the key off. No sputter, no gradual loss of power - just DEAD. Being on the hill, I was able to roll back down onto a flat parking spot. Once on the flat - I started right up but was obviously a bit flooded with gas. That tells me when it had died - it was lack of ignition. I cranked for awhile and the TBI sent a lot of gas into the engine. So here I am, kind of stumped. I know nothing about this van and have no manual. Not sure where to even start trying to diagnose something like this - especially now that it runs. Anybody got any ideas? I can't imagine how a steep hill could effect spark unless it is sheer coincidence.

Ignition coil and crank position sensor are both known to be failure-prone, NOT sure if it getting fuel would rule out the crank position sensor.

Thanks. I've heard doom & gloom about the crank sensors but never had a vehicle with one that failed. I've have to research and figure out where it is in this V6. I also can't swear the hill was really the issue. Maybe it ran again just because it had sat for 15 minutes. Odd though that after driving 1000 miles and good and warm - no issue. But cold-start backing out the driveway and it fails.

Might be a fuel pump problem

If you can place one of those in line spark testers on a plug you will see if ignition is cutting out.

I fought a Dakota with the 3.9 years ago and it turned out to be the distributor gear was getting chewed up.
It would still move so when testing you would still get spark but it was so far out of time it would not run.

That was a common problem for a few years there, there is also a bushing down in there that
would be worn out.

I would put a fuel pressure gauge on and back up the hill again, see if you can recreate the problem.

Had a Dodge PU about that year, the pump mount bracket had broken, letting the pump hang by the wires and hoses. It broke a wire inside the insulation, would give intermittent problems. Put the pressure gauge on and drove it until it happened again, sure enough, the pressure dropped when the engine stalled. Found the problem!

Sounds like it would have cheaper to jump on a bus.

Crank sensor should be on the left side of the motor in a notch in the bellhousing.
The cam sensor tells the computer when #1 is at tdc and it fires injectors and plugs from there by the magnetic pick-ups off the flex plate (auto) or flywheel (manual).
It is a magnum engine and not tbi right?