nissan Workshop Repair Guides

Nissan and Datsun Workshop Service and Repair Manuals

Fuel Injector|Testing and Inspection > < Diagram Information and Instructions|Page 4096
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Fuel Injector: Description and Operation

FUEL INJECTOR

Component Description

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

Fuel Injector|Testing and Inspection > < Diagram Information and Instructions|Page 4096