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High-pressure pump BOSCH, Common Rail system
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CP1H, CP3 and CPN2 Pump | Fuel metering unit kit, reference bosch CRDI system
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The working principle of the fuel metering unitSo what exactly does the fuel metering unit do? The fuel metering unit is also called the fuel metering proportional valve. It is installed in the fuel inlet position of the high-pressure fuel pump, used to adjust the fuel supply and fuel pressure value.