Abnormal Exhaust Emissions
Kev ua tau zoo: Ntau dhau ntawm cov pa hluav taws xob dub, xiav lossis dawb tso pa tawm, tshaj cov qauv emission. Uas: Cov roj combustion tsis tiav, cov pa roj carbon deposits nyob rau hauv lub cav, pa pa recirculation system tsis ua hauj lwm, thiab lwm yam. Piv txwv li: tus tswv pom tias lub tsheb emission dub pa luam yeeb thaum accelerating. Tom qab kuaj xyuas, nws tau pom tias cov roj injector lossis lub ntsuas cua tsis ua haujlwm, ua rau cov roj tsis tiav. Cov khoom siv uas yuav tsum tau hloov pauv: Oxygen sensor: Oxygen sensor tsis ua haujlwm yuav ua rau cov roj sib tov tsis raug, ua rau muaj teeb meem emission, thiab yuav tsum tau hloov. EGR valve (kua pa roj recirculation valve): EGR valve thaiv los yog kev puas tsuaj yuav ua rau tsis tsim nyog emissions thiab yuav tsum tau hloov. Roj injector: Roj injector blockage lossis kev puas tsuaj yuav ua rau cov khoom sib xyaw ua kom nplua nuj heev, tawm cov pa luam yeeb dub, thiab yuav tsum tau hloov.