While it is a bit of a long shot, I'd examine VERY closely the wiring
ends at the alternator main power stud.
Failures there can cause the van that was just running to not start
again after a stop.
With the battery negative unhooked, remove and closely inspect those red
wires to make sure the ring terminals and crimps on the ends are still
good as well as clean.

At this time of year problems in that spot become more frequent due to
the added electrical loads of the A/C system and radiator fan.

Mark

OlRivrRat wrote:
>         1986 Westy Weekender 2WD+AT ~ Owner reports 2 very minor Sputters while on
>
> errand drive, shut down @ errand loc’ & then No Start ~
>
> No Spark
>
> 11.7V @ Batt while cranking
>
> 12V+ to Coil Igni’ On
>
> Igni’ & FP Relays energizing
>
> Fuel Pump Runs
>
> Idle Air Cont’ Hums
>
>         Have SwappedIn
>
> Coil    (used, supposed good)
>
> Dizzy. (1 used & 1 New)
>
> ECU     (2 used, supposed good)
>
> Ignition Switch (New)
>
>         Probably forgetting to mention something ~
>
>         Have only had it here for a few hours but not much time to diag’ today ~
>
> Will do more digging tomorrow ~
>