nissan Workshop Repair Guides

Nissan and Datsun Workshop Service and Repair Manuals

Diagram Information and Instructions|Page 5419 > < Diagram Information and Instructions|Page 5417
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Fuel Injector: Description and Operation

COMPONENT DESCRIPTION 

The fuel injector is a small, precise solenoid valve. When the ECM supplies a ground to the injector circuit, the coil in the injector is energized.
The energized coil pulls the needle valve back and allows fuel to flow through the injector into the intake manifold. The amount of fuel injected
depends upon the injection pulse duration. Pulse duration is the length of time the injector remains open. The ECM controls the injection pulse
duration based on engine fuel needs.

Diagram Information and Instructions|Page 5419 > < Diagram Information and Instructions|Page 5417