It's going to be your Crank Angle Sensor (CNK), the absolute exact thing happened to me three nights ago. I used the remote start on my 2001 Ram 2500 with the 5.9 Gas, and I got into the truck and all of a sudden it stalled, I checked everything you checked and it came down to either something simple as the Crank Angle Sensor or the ECU, so I replaced the sensor which was only $43.00 from Advance Auto Parts and it's been running great. The sensor is located behind your engine on the side of the Bell Housing on the passenger side. Your going to want to take the front passenger side plastic wheel well off and you have access right to it. The sensor has a magnetic end that slides right into the engine on an angle and the other end plugs under the distributor. Hope this helps! Good luck!