Nissan Repair: Failure to start, chilton manual, fuel pump relay

Question
I have a Nissan Quest 96, it first started on a downhill incline the car stalled and would not start again.  We rolled it down to level and after 30 min it would start.  This would happen again but on level ground.  Starting and running normal for short periods but when turned off it would not start again.  I checked and there is no error codes.  I changed plugs and rotor thinking that has been awhile but no luck.  Any idea?

Thanks Keith

Answer
Keith,

If the van cuts off check the fuel pump relay and check the fuel rail for fuel pressure.  If the pressure is good then check to see if the module for the ignition is defective.  Get a Haynes or Chilton manual for $20 bucks and they have the diagnostic procedures listed.