13E
13E-5
• When the engine is cranked by means of the starter switch, the feed pump (this is located inside the supply pump)
simultaneously draws fuel from the fuel tank and feeds it via the water separator and fuel filter to the SCV (suction
control valve). A quantity of fuel metered by the SCV (suction control valve) is supplied via the inlet valves to the
plunger chambers.
• The fuel in the plunger chambers is pressurized. The outlet valves are then opened, and the fuel is fed under pres-
sure to the common rail.
• The pressurized fuel is held in the common rail and then uniformly fed to the injectors.
• In response to signals from the engine electronic control unit, a solenoid valve in each injector causes the injector
to inject fuel into the relevant combustion chamber at the optimal timing and in the optimal quantity.
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