Fuel Injector: Description and Operation

Fuel Supply and Management

The N52KP and N51 engines continue to use the conventional "manifold injection" system from the N52.







Fuel Injectors/Fuel Rail
Due to the wider design of the cylinder head, the fuel injectors are not located in the intake manifold as on previous 6-cylinder engines. The injectors are now mounted into machined bore in the cylinder head. This design allows the injectors to be closely mounted to the intake valves.

The injectors are a compact design manufactured by Deka with a resistance value of approximately 12 ohms each.

Power supply for the fuel injectors is from Terminal 87 of the fuel injector relay.

The fuel rail is a non-return design which includes a service port for diagnosis.