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High-pressure fuel supply lines
Fuel Injectors
The fuel injectors are of a slim six-hole type (pencil fuel injector) located centrally over the piston recess. The fuel injectors are retained in the cylinder head by locking sleeves. The positioning of the fuel injector nozzle holes are matched to the piston recess. The shape of the piston crown has been developed for optimum combustion.
Fuel Injection Pump
The fuel injection pump is a Bosch distributor type fuel injection pump. The drive for this type of fuel injection pump is provided by the crankshaft via a chain. The fuel injection pump incorporates a fuel injection pump control unit located on the top of the pump. The fuel injection pump control unit receives data from the crankshaft position (CKP) sensor and the powertrain control module (PCM). The fuel injection pump control unit calculates the actuation signals for the high-pressure solenoid valve and the fuel injection timing solenoid valve. The fuel injection pump control unit then controls the fuel delivery through the high-pressure solenoid valve.
The fuel injection pump is matched to the PCM and will not allow the vehicle to start if the fuel injection pump control unit and the PCM do not recognize the encrypted codes sent. If a new fuel injection pump or PCM is to be installed they must be configured using WDS.
The fuel system incorporates a feature that prevents the fuel system running dry and consequently drawing air into the system. The PCM receives an input signal from the in-tank fuel level sensor. When the fuel in the tank drops to approximately 3 to 4 liters, it will cause a driveability concern alerting the driver of a low fuel level concern.
