1992 caravan/ 3.3l

I have a 1992 dodge caravan 3.3 engine ,it has about 150,000 mi. it has been stalling lately but not ll the time. I've done all the basic repair stuff like plugs, wires ect. getting ready to replace the fuel filter, pcv valve.Any other thoughts

Possibility one is if there has been extreme cold weather in your area, water condensation usually gets in the gas. Use a can of drygas.
Possibility two is if the CES light is set indicating the ECM has seen a problem and you are in limp mode.

I have a 1992 dodge caravan 3.3 engine ,it has about 150,000 mi. it has been stalling lately but not ll the time. I've done all the basic repair stuff like plugs, wires ect. getting ready to replace the fuel filter, pcv valve.Any other thoughts

I HAVE THE SAME EXACT PROBLEM,my van is a wheelchair dropped floor it needs to be reliable,did you find the cause ?

Check the camshaft and crankshaft position sensors. Mine was stalling after about 10 min. of driving until I replace both.