My 03 discovery would just kick over but wouldn't fire and run. found out no signal from crank sensor to computer. replaced sensor and worked fine for 600 miles. Now 4 or 5 times stop at signal or gas station and engine dies but can restart after about 5 minutes.
any ideas?

 

Clean your Mass Air Flow Sensor and then your Idle Air Valve. It's not fool proof, but it's a pretty common failure point. Make sure you use MAF cleaner on the MAF Sensor or you will definitely be replacing it.

 

Sounds like a crank sensor to me. Next time it happens pour a couple bottles of water over the sensor and try again. That will cool it off. If it starts then there's your problem.

 

My CPS just made it so it wouldn't start for a while, it never died on me. Still a very good thing to check.

 

They can go both ways. When mine went it quit driving down the road.