Fuel Metering Valve

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The fuel metering valve is mounted on the High Pressure (HP) fuel pump. The fuel metering valve is a variable position, solenoid-operated valve that is controlled by the Powertrain Control Module (PCM) with a Pulse Width Modulation (PWM) signal. The fuel metering valve controls the quantity of fuel delivered to the plunger.

When the HP fuel pump rotates, pressure is created when the fuel metering valve is open and the fuel rail mounted fuel Pressure Control Valve (PCV) is closed. The fuel metering valve and the fuel PCV are variable position valves, and used by the PCM to control fuel delivery and fuel system pressure.

The fuel metering valve is normally open when the solenoid is not energized by the PCM. For additional information, refer to: ELECTRONIC ENGINE CONTROLS