DIRECT FUEL INJECTION SYSTEM CONSTRUCTION/OPERATION[L3 Turbo]

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Construction

• The direct fuel injection system consists of a high pressure fuel pump, fuel injectors fuel pressure sensor, and a relief valve.

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1

Fuel tank

2

High pressure fuel pump

3

Fuel injector

4

Relief valve

5

Fuel pressure sensor

Operation

• Fuel is injected during the intake process and diffused uniformly in the combustion chamber by the flow of intake air.

• Fuel injection timing is explained in CONTROL SYSTEM and FUEL INJECTION CONTROL.