I-P20A4 Reductant purge control valve ivalwe ivulekile

I-P20A4 Reductant purge control valve ivalwe ivulekile

Idatha ye-OBD-II DTC

I-valve yokunciphisa i-purge control ivulekile

Kusho ukuthini lokhu?

Le yikhodi enenkinga yokuxilonga i-powertrain diagnostic code (DTC) esebenza ezimotweni zikadizili eziningi ze-OBD-II (1996 ukwethula). Lokhu kungafaka, kodwa kungagcini lapho, kwaChevrolet, GMC, Ford, Mitsubishi, VW, Sprinter, Audi, njll. Naphezu kwemvelo ejwayelekile, izinyathelo zokulungisa ngqo zingahluka ngokuya ngohlobo lwemodeli, ukwakheka, imodeli nokudluliswa kokuhanjiswa.

I-OBD-II DTC P20A4 namakhodi ahambisanayo i-P20A0, P20A1, P20A2, P20A3, ne-P20A5 ahlotshaniswa nomjikelezo we-valve we-purge control valve. Lesi sifunda saziwa nangokuthi uhlelo lwe-Diesel Exhaust Liquid (DEF).

Inhloso yokunciphisa i-valve purge circuitry ukuthumela isignali kumodyuli yokulawula amandla (i-PCM) noma i-module yokulawula injini (i-ECM) njengendawo yokukhomba yokunquma ukuthi iphampu enqamulelayo idinga ukuhlehlisa nini ukugeleza nokuhlanza uhlelo lwe-DEF. Le nqubo isetshenziselwa ukusiza ukuguqula izinhlayiya zokukhipha ezisele zibe ngamagesi angenangozi. Uhlelo lwe-DEF lwenzelwe ukuguqula amagesi angama-NOx ayingozi abe yi-nitrogen, i-carbon dioxide namanzi ukuvikela imvelo.

Lapho i-PCM noma i-ECM ithola ukuthi i-valve yokunciphisa i-purge control ivaliwe, ikhodi ye-P20A4 izosetha futhi ukukhanya kwenjini yokuhlola kuzokhanyisa.

Umakhenikha:

Buyini ubunzima bale DTC?

Ubukhali bale khodi buvame ukulinganiswa, kepha i-P20A4 ingaba sibi uma kususwa amagesi ayingozi emsipheni, okwenza kube yinkinga yezokuphepha edinga ukunakwa ngokushesha.

Yiziphi ezinye zezimpawu zekhodi?

Izimpawu zekhodi yenkinga ye-P20A4 zingafaka:

• Ukusebenza kabi kwenjini
• Ukwehla komnotho kaphethiloli
• Isibani senjini yokuhlola sivuliwe

Yiziphi ezinye zezimbangela ezivamile zekhodi?

Izizathu zale khodi ye-P20A4 zingafaka:

• Ukunciphisa i-valve purge control valve kungasebenzi
• Izintambo ezingalungile noma ezilimele
• Okuxekethile noma okungalungile module module wayibhinca
• Isixhumi esonakalisiwe noma esonakele
• I-fuse noma i-jumper enephutha (uma ikhona)
• I-PCM noma i-ECM enamaphutha

Yiziphi izinyathelo ze-P20A4 zokuxazulula inkinga?

Isinyathelo sokuqala sokuxazulula inkinga noma iyiphi inkinga ukubuyekeza i-Technical Service Bulletins (TSBs) yemoto ethile ngonyaka, imodeli nokutshala amandla. Kwezinye izimo, lokhu kungakongela isikhathi esiningi ngokuhamba kwesikhathi ngokukukhomba endaweni efanele.

Isinyathelo sesibili ukuthola zonke izakhi ezihlobene ne-reductant purge control valve circuit futhi ubheke umonakalo obonakalayo obonakalayo. Kuye ngemoto ethile, isistimu ye-DEF ingase ihlanganise izingxenye eziningana, kuhlanganise nepompo yokunciphisa kagesi, i-valve yokuhlanza, inzwa yokucindezela, inzwa yezinga elibalulekile, inzwa yokushisa, izifudumezi zesistimu, izihlungi, i-reductant injector elawulwa ngogesi, kanye ne-reservoir. Yenza ukuhlola okujulile kokubuka ukuze uhlole izintambo ezihambisanayo ukuze uthole ukukhubazeka okusobala njengokuklwebheka, imihuzuko, izintambo eziveziwe, noma izimpawu zokusha. Okulandelayo, hlola izixhumi nezixhumi ukuze uthole ukuphepha, ukugqwala kanye nokulimala koxhumana nabo. Le nqubo kufanele ifake zonke izixhumi zezintambo nezixhumi kuzo zonke izingxenye ezihlanganisa i-PCM noma i-ECM. Bheka i-data sheet ethile yemoto ukuze ubone ukuthi i-fuse noma isixhumanisi se-fuse sifakiwe kusekethe.

Izinyathelo ezithuthukile

Izinyathelo ezengeziwe ziqondiswa kakhulu yimoto futhi zidinga ukuthi imishini efanelekile ukuthi yenziwe ngokunembile. Lezi zinqubo zidinga imultimeter yedijithali kanye nemibhalo eqondene nezobuchwepheshe eqondene nemoto. Kulesi simo, i-gauge yengcindezi nayo ingadingeka ukuhambisa inqubo yokuxazulula inkinga.

Ukuhlolwa kwe-Voltage

Amandla wereferensi kanye nobubanzi obuvumelekile bungahluka ngokuya ngemoto ethile nokumiswa kwesekethe. Imininingwane ethile yezobuchwepheshe izobandakanya amatafula wokuxazulula inkinga nokulandelana okufanele kwezinyathelo ukukusiza wenze ukuxilongwa okunembile.

Uma le nqubo ithola ukuthi umthombo wamandla noma umhlaba ulahlekile, kungadingeka isheke lokuqhubeka ukuze kuqinisekiswe ubuqotho bezintambo, izixhumi nezinye izinto. Ukuhlolwa kokuqhubeka kufanele kwenziwe njalo ngamandla angaxhunywanga kusekethe, futhi ukufundwa okujwayelekile kwentambo nokuxhuma kufanele kube ngama-0 ohms wokumelana. Ukumelana noma ukungabikho okuqhubekayo kubonisa izintambo ezingalungile ezivulekile noma ezifushane futhi ezidinga ukulungiswa noma ukushintshwa. Ukuhlolwa kokuqhubeka kusuka ku-PCM noma i-ECM kuya kufreyimu kuzoqinisekisa ubuqotho bezintambo zomhlabathi nezintambo zomhlaba. Ukumelana kubonisa ukuxhumeka okuxekethile noma ukugqwala okungenzeka.

Yiziphi izindlela ezijwayelekile zokulungisa le khodi?

• Ukufaka esikhundleni se-Reductant Purge Control Valve
• Ukuhlanza izixhumi kusuka ku-corrosion
• Lungisa noma buyisela izintambo ezingalungile
• Ukumiselela i-fuse noma i-fuse (uma kusebenza)
• Ukulungiswa noma ukushintshwa kwamateyipu angavumelekile
• Ukukhanya noma ukufaka i-PCM noma i-ECM

Iphutha elijwayelekile

• Ukufaka esikhundleni se-valve yokulawula i-purgeant ukunciphisa, i-DEF ehambisanayo, i-PCM, noma i-ECM lapho izintambo ezingalungile zenza ukuthi le khodi isethwe.

Ngethemba ukuthi ulwazi olukulesi sihloko lusizile ukukukhomba endaweni efanele ukuxazulula inkinga ye-DTC yokulawula i-valve yokunciphisa amandla. Le ndatshana yenzelwe ulwazi kuphela futhi imininingwane ethile yezobuchwepheshe kanye namabhulethini wensizakalo yemoto yakho kufanele kuhlale kuqala.

Izingxoxo ezihlobene ze-DTC

• Okwamanje azikho izihloko ezihlobene ezinkundleni zethu. Thumela isihloko esisha esithangamini manje.

Udinga usizo olwengeziwe ngekhodi le-P20A4?

Uma usadinga usizo nge-DTC P20A4, thumela umbuzo kumazwana angezansi kwalesi sihloko.

QAPHELA. Lolu lwazi lunikezwa ngenhloso yokwaziswa kuphela. Akuhloselwe ukuthi isetshenziswe njengesincomo sokulungisa futhi asinacala nganoma yisiphi isenzo osithathayo kunoma iyiphi imoto. Yonke imininingwane ekulesi siza ivikelwe yi-copyright.