D21 Hardbody XE 4WD L4-2389cc 2.4L SOHC MFI (KA24E) (1997)
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 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.