Iyo Bosch mafuta metering unit (fuel metering valve) inogadzirwa neYS ndechimwe chezvinhu zvakakosha muinjini yedhiziri yekugovera mafuta. Iyo inodzora huwandu hwehuturu inopinda munjanji yemafuta kuti isangane nezvinodiwa zvekudzvanywa kweiyo common rail system. inoumba yakavharwa-loop kudzora kwenjanji kumanikidza pamwe neiyo njanji pressure sensor.
Zvidimburiso zveChirungu zveBosch fuel metering valve inogadzirwa neYS iZME, MEUN, Delphi system inonzi IMV valve, uye Denso system inodaidzwa kuti SCV valve kana PCV valve.