99 Dodge Ram 1500, 5.2 engine. After the engine is warmed up, and at any speed it will stall! Just like if I switched the off! I can coast over and as soon as I turn the key back on and gauges move it will start right up. never and crank time! I put a new coil and now a crank sensor.. I want to try the ignition switch next, opinion on using a used part after that it may be the PCM. The # I got off the front is 115AE! found one # is 115AA, anyone know if they interchange.. Then will I have to have it reset
It is a legends Van Great on the inside, but losing paint outside Help

 

You've now done the ignition coil and crank sensor but have you looked at the cam sensor/pickup coil??
the wires going into the lower part of the distributor cap attach to the pickup coil located under the cap and rotor. Check the wiring and connection to it and also excessive corrosion on contacts, much like the stuff you'd see inside an old worn distributor cap contacts.
I'd help if I knew but not sure on your pcm question, sorry