Land Rover Repair: 01 dis 2 runs fine for 15 min then shuts off, land rover dealer, crank sensor

Question
Sir,

      I have had my disco looked at by a land rover dealer who was unable to find the problem, so I now resort to you. The vehicle runs fine for 15 min or so then shuts off and will not start again until it cools down(not overheating). I have been told (since the diagnostic check found nothing) everything from it is the fuel pump, fuel pump sensor, crank sensor or cam shaft sensor one of the two, to o2 sensor. Any Ideas would be greatly appreciated.

Answer
You said:  I have had my disco looked at by a land rover dealer who was unable to find the problem, so I now resort to you. The vehicle runs fine for 15 min or so then shuts off and will not start again until it cools down

Why can't the dealer fix it?

If they let it run till it quits it should be a simple matter for them to connect their t4 system and see why it's not running.

Am I missing something?  Is this an intermittent problem the dealer did not experience?