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    2000 Mercury Cougar 2.5L SFI DOHC 6cyl

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    Vane Air Flow Meter

    Vane Air Flow Meter Operation:

    A sensor with a movable vane, connected to an electrical circuit, that changes the signal sent back to the engine control computer. The air volume is measured as the air moves through a spring-loaded door inside the sensor. It controls engine speed and power output.

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