16 SENR9977 Systems Operation Section Fuel Injection Pump g01132091 Illustration 12 Schematic of the Bosch VP30 fuel injection pump (1) Speed/timing sensor (2) Electronic control unit (ECU) for the fuel injection pump (3) Fuel transfer pump (4) Fuel solenoid valve (5) Distributor plunger (6) Fuel injector (7) Delivery valve (8) Cam plate (9) Roller (10) Timing advance mechanism (11) Timing solenoid valve (12) Fuel transfer pump (13) Pressure regulator (14) ECM (15) Cam ring The fuel injection pump has the following operations: Shutoff Delivery Control Generation of high pressure Distribution and injection Timing and control