Chevrolet: Engine dies, coolant temperature sensor, crankshaft position sensor

Question
I have a 1992 Chev. Astro Mini-van that suddenly started dying and does not want to re-start until it has sat and cooled off. I just replaced the engine coolant temperature sensor and the car started fine, but after idling for about 3 or 4 minutes, it died and would not re-start. It has the 4.3 Vortex engine. Last year the in-tank fuel pump and injector spyder was replaced. Any suggestions will be highly appreciated as I am totally stupid when it comes to Chevrolet problems.  Thanks,  Mel

Answer
You need to know if it wont start due to a loss of spark or a loss of fuel or both.
The most common problems with a "stalls and wont restart hot" are the ignition module, coil, and crankshaft position sensor(I dont remember if your van has one).
Thats about all I can tell you without some further diagnostics by you.