[surfbeast]

A few posts back I was having the same "mystery" problem. Car would just "shut off" for no apparent reason. I checked every single ground and unplugged and replugged every electrical connection. Cleaned the MAF sensor, etc.., etc.. Now no problems. The ford mechs I know said if the engine light does not come on than it is not a sensor or computer problem. If you can idel and rev in park with no problems it's not the fuel pump. If you have a K&N first thing to do is clean the MAF sensor.

Good Luck!