S15/T15 4WD Jimmy V6-262 4.3L VIN Z (1992)
Fuel Injector: Description and Operation
PURPOSE
The fuel injector sprays highly atomized fuel into the intake system to promote complete combustion of the air/fuel mixture.
OPERATION
The fuel injector is a solenoid operated device, controlled by the control module. The control module turns "ON" the solenoid, which lifts a normally
closed ball valve off a seat. Fuel, under pressure, is injected in a conical spray pattern at the walls of the throttle body bore above the throttle valve.
The fuel which is not used by the injector passes through the pressure regulator before being returned to the fuel tank.
