WranglerX
Elite Member
Might look at fuel system shut off solenoid.... On "some" diesel tractors when you turn key OFF, it energises fuel shut off solenoid and a timer circuit. The solenoid actually cuts fuel supply off to injection pump.... IT may be only thing that is energised when key is turned off and it only stays energised for duration of timer circuit ( maybe 8 -10 seconds)... You probably need to research tractor fuel supply system to see if this may be problem...