Ford Taurus Manual page 884

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ELECTRONIC FUEL INJECTION (EFI)

The fuel manifold is normally removed with fuel injectors and pressure regulator

attached. Fuel injector electrical connectors are plastic and have locking tabs that

must be released when disconnecting the wiring harness.

The air subsystem components include the air cleaner assembly, air flow (vane)

meter, throttle air bypass valve and air ducts that connect the air system to the

throttle body assembly. The throttle body regulates the air flow to the engine

through a single butterfly-type throttle plate controlled by conventional

accelerator linkage. The throttle body has an idle adjustment screw (throttle air

bypass valve) to set the throttle plate position, a PCV fresh air source upstream

of the throttle plate, individual vacuum taps for PCV and control signals, and a

throttle position sensor that provides a voltage signal for the EEC-IV control unit.

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Cross-sectional view of an EFI fuel injector

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Fuel supply manifold assembly

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