WARNING
To avoid personal injury and/or vehicle damage, refer to the service precautions at the beginning of this section.
Electronic fuel injectors for all gasoline engine applications are basically the same. They consist of an injector body, an electric solenoid, spring, nozzle and a filter. The injector is supplied a constant supply of pressurized fuel from the fuel system. The primary function of the fuel injector is to atomize gasoline into the surrounding air at the proper time. Throttle body injectors atomize fuel into the intake manifold or combustion chamber in much the same manner as a conventional carburetor (wet intake); port fuel injectors direct the atomized fuel at the back side of each cylinders intake valve(s) (dry intake). Gasoline direct injection systems operate at substantially higher pressure and direct the atomized fuel directly into the combustion chamber of each cylinder.