DIESEL COMMON RAIL SYSTEM PARTS
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SCV Valve
SCVs control the amount of fuel that is pumped through the common rail system, therefore helping to maintain consistent fuel pressure. This ensures that the common rail injectors can deliver the right amount of fuel under the correct pressure to the combustion chamber, optimizing combustion performance and increasing overall engine efficiency.

Fuel Metering Unit
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, and is controlled by the ECU computer.
