Range Rover SE (LP) V8-4.0L (1995)
Fuel Injector: Description and Operation
GEMS Fuel Injector
FUEL INJECTORS
The electronically operated fuel injector provides a simple and effective way of metering the fuel provided for combustion.
The Fuel Injectors contain an internal disc that allows fuel to pass when the solenoid is energized.
Injector Pulse Width
The length of time the injector is energized and delivering fuel is referred to as injector "pulse width. This varies between 1.5 to 10 milliseconds,
depending on operating conditions. The longer the injector is energized, the greater the volume of fuel delivered. The ECM uses the duration of its
ON signal to the injector (where it provides a ground for the injector circuit) to control fuel delivery to the cylinder.