Mpweya wotsekereza ndi valavu yolamulidwa yomwe imalamulira kuyenda kwa mpweya kulowa mu injini. Mpweya ukalowa mu chitoliro cholowera, umasakanizidwa ndi mafuta ndipo umakhala chisakanizo choyaka, chomwe chidzayaka ndikugwira ntchito. Umalumikizidwa ndi fyuluta ya mpweya, yomwe ndi block ya injini, yomwe imadziwika kuti khosi la injini ya galimoto.
Ma injini a petulo anayi a throttle nthawi zambiri amawoneka motere. Throttle ndi imodzi mwa zigawo zofunika kwambiri pa injini yamagetsi yamagetsi masiku ano. Gawo lapamwamba ndi fyuluta ya mpweya, gawo lapansi ndi silinda ya injini, ndipo ndi pakhosi pa injini ya galimoto. Kuthamanga kwa galimoto kumakhala kosinthasintha, ndipo throttle yonyansa ili ndi ubale wabwino, kuyeretsa throttle kungachepetse kugwiritsa ntchito mafuta kungapangitse injini kukhala yosinthasintha komanso yamphamvu. Throttle siyenera kuchotsedwa kuti iyeretsedwe, komanso chidwi cha eni ake kuti akambirane zambiri.
