What is fuel metering valve?
The oil metering valve unit aliases are IMV valve, EFC/MEUN valve, SCV valve, PCV valve. The name is different according to each manufacturer. But his goal is to control the oil intake and return flow of the high-pressure pump, so as to control the oil supply of the oil pump plunger to the rail, meet the set pressure of the common rail system, and form a closed-loop control of the rail pressure with the rail pressure sensor.
