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Home >> Ford >> 1990 >> Bronco II RWD, Standard, M5OD-R1 >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Fuel Control Systems >> Fuel Injectors
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Fuel Injectors

Each cylinder has a solenoid-operated injector which sprays fuel toward back of each intake valve. ECA controls pulse width or time each injector is energized.

Fuel injectors meter and atomize fuel delivered to engine. Each injector receives battery voltage through ignition switch circuit. The ECA controlled ground circuit completes circuit and energize injector.

Injector bodies consist of solenoid-actuated pintle and needle valve assembly. Injector flow orifice is fixed and fuel pressure at injector tip is constant. Atomizing spray is obtained by shape of pintle.