Ko tangi yemafuta yekufemesa mhepo inoshanda sei?

Hupfu hwehupfu hunoumba mutangi haugoni kutiza. Inodzorwa nemafuta tank ventilation system controller.

Mafuta ehutsi anokuvadza kune zvakatipoteredza anoburitswa kubva mutangi achipinda mugaba rakagadzirwa kabhoni, rinoatora. Kubva ipapo, muchimiro chemvura, vanopinda mune yakawanda yekudyara. Mhepo inopihwa kune mafuta vapor adsorber kusunungura iyo activated kabhoni kubva mumafuta akaunganidzwa mairi. Kudzvinyirira kwakashata kwakagadzirwa kunosveta mafuta kubva mumarasha. Pakati pegaba uye manifold ekutora mumutsara wekugovera ifuel vapor control solenoid valve. Munguva yekushanda kwejini, mutongi anotumira mamwe mafungiro kwairi, ayo kune madhigirii akasiyana-siyana anokanganisa chiyero chekuvhura kwevhavha, iyo inoshandura muhuwandu hwemhepo nemafuta akasvetwa kunze kwemarasha.

Ivhavha inoramba yakavharwa kana injini yatangwa. Inongoitwa chete kana iyo drive unit yasvika kune imwe tembiricha yekushanda. Iyo periodic vharafu kuvhura uye kuvhura nguva inotemwa nemutongi zvichienderana nemasaini akadai kubva kune throttle position sensor uye lambda probe. Kudzora kwevharuvhu kunoreva izvo zvinonzi adaptive masisitimu, izvo zvinoreva kuti chigadziriso chigadziriso chinogadzirisa kuvhura kwevharuvhu nekuvhara kutenderera kune kuchinja injini inoshanda mamiriro.

Iyo EOBD pa-board diagnostic system inotarisa kushanda kwemafuta tank ventilation system. Mune capacitive test, kuvhura valve, zvichienderana nehuwandu hwekuzadzwa kwechigadziko nemafuta emhepo, inoshandura kuumbwa kwemusanganiswa. Shanduko iyi kune lambda probe kumusoro kweiyo catalytic converter inosimbisa kuti peturu tank ventilation system iri kushanda. Uyezve, panguva yeinonzi B modulation test, injini yekudzora injini inovhura uye inovhara zvishoma valve, semugumisiro wekuchinja kunoitika, i.e. tora manifold pressure modulation. Iyo inoyerwa neyekumanikidza sensor uye pahwaro hweizvi, injini yekudzora unit inoongorora kushanda kweiyo tank ventilation system.