FUEL INJECTOR CONSTRUCTION/OPERATION [13B-MSP]


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Fuel Injector (FP, RP)
•  Installed on the intermediate housing at an angle of approx. 45°, and injects fuel near the intake port opening.
•  Mainly consists of a coil, spring and needle valve.
•  Fuel injector with 12 injection holes and injection angle of approx. 30° adopted to enhance fuel injection vaporization.
•  When a PCM signal is sent, exciting current passes through the coil, pulling in the needle valve and injecting fuel.
•  The amount of injection is determined by the open time of the needle valve, i.e. the energization time of the coil.
Fuel Injector (FS, RS)
•  Installed on the intake manifold.
•  Mainly consists of a coil, spring, and needle valve.
•  Injects fuel into the intake manifold at an angle of approx. 19°, so that the fuel is drawn into the housing together with intake air.
•  When a PCM signal is sent, exciting current passes through the coil, pulling in the needle valve and injecting fuel.
•  The amount of injection is determined by the open time of the needle valve, i.e. the energization time of the coil.