High/Low Pressure Oli Passage of the Engine（IMV）, Adjust the opening of the valve to control the amount of fuel flowing into the high-pressure fuel pump. When the control signal is not applied, the amount of fuel in the high-pressure fuel pump is the largest.
The fuel metering proportional valve is installed at the fuel inlet position of the high-pressure fuel pump and is used to adjust the fuel supply volume and fuel pressure value. And its adjustment requirements are controlled by ECU. When the fuel metering proportional valve is not energized, the fuel metering proportional valve is on and can provide the maximum flow of fuel.