Hi Thomas. My name is***** will be glad to try to help. When this shuts down is it instant like you turned off the key or sputter and die like it is starving for fuel?
Are there any warning indicators or faults on the display?
Click on this link for the maintenance manual and schematics (End of the manual). Check to confirm if it is shutting down due to coolant temp or oil pressure. If not actual problems, check the sensors and harness. Let me know.
Check for low coolant level and if okay check for a faulty sensor or harness. Also check the same for oil pressure sensor and harness. Most commonly it will be coolant level or temp. Let me know