Fuel Injectors

FUEL INJECTORS

Fuel Injectors:

A fuel injector is a solenoid device, controlled by the fuel injector control module, that meters pressurized fuel to a single engine cylinder. The fuel injectors are located under the rocker covers. The ECM energizes the low-impedance injector solenoid to open a normally closed valve. Fuel pressure is released from above the fuel injector pintle, and is returned to the fuel tank. The difference in fuel pressure above and below the pintle causes the pintle to open. Fuel from the fuel injector tip is sprayed directly into the combustion chamber on the compression stroke of the engine.