My 1993 dakota has 180000 miles on it. Once the vehicle heats up to running temperature (or sometimes before) it will start missing. The further you run it the worse the miss gets (I'm usually just trying to get it back home before it dies). It will stip and spudder and die in the road normally a couple minutes after it starts to miss. I have replaced everything I can think of. It had a new distributor cap, rotor button, plugs, plug wires, throttle positioning sensor, temp sending unit, distributor, coil pack, fuel filter and the PCM. It looks like its getting fuel when it starts to miss. I am checking this just by a visual inspection. Once when the vehicle shut off I was getting on the interstate, (so I was running it pretty hard) the vehicle started to spit and spudder and shut off pretty immediately. It seems that it had dumped fuel into the throttle body because it had a moderate amount of smoke coming from behind/ under the throttle. It wasn't an oil smoke. (at least I think it was excess fuel not sure). The weird thing about the whole deal is that once the vehicle cools off completely it will fire back up and run fine!! The only thing I have not changed is the fuel pump. Any ideas??