Fuel Injectors

The injector nozzles meter and atomize fuel delivered to engine. Injectors are mounted in lower intake manifold and direct fuel just ahead of engine intake valves.

An electrical control signal from EEC-IV module activates injector solenoid, causing pintle to move upward off seat, allowing fuel to flow. Since injector flow orifice diameter is fixed and fuel pressure drop across injector tip is constant, fuel flow to engine is regulated by length of time solenoid remains energized.