PURPOSE: To decrease consumption of electric power for a fuel shutoff valve and increase its life, by providing means for additionally supplying operating power only at opening of a valve unit in the fuel shutoff valve of a fuel injection pump.

CONSTITUTION: A solenoid fuel shutoff valve 20 is provided in the half way of a suction passage 4 to a fuel injection pump. When the valve is opened, two electromagnetic coils 24a, 24b are electrically conducted by a control unit 32. After opening the valve, an electric current is conducted only to one electromagnetic coil 24a. In this way, an opening command for the fuel shutoff valve can be surely executed even in a range of high speed of an engine, simultaneously electric power consumption can be decreased after the valve opening to save power and increase a life of the fuel shutoff valve.