Yuam kev code p0420 Toyota, Ford thiab lwm lub tsheb

2024 Tus sau: Erin Ralphs | [email protected]. Kawg hloov kho: 2024-02-19 16:10

Peb nyob hauv lub ntiaj teb uas ua raws li lub sijhawm. Khoos phis tawj thev naus laus zis thaum kawg ntawm lub xyoo pua xeem tsis dhau los ntawm kev lag luam tsheb. Thawj lub tsheb nrog kev kuaj mob ntawm lub nkoj tau qhia los ntawm Volkswagen rov qab rau xyoo 1968.

Nyob rau hauv-Board Diagnostics

Txhua tus neeg tsav tsheb uas muaj lub tsheb niaj hnub paub txog cov txheej txheem kuaj mob hauv lub tsheb, uas koj tuaj yeem pom qhov ua txhaum hauv lub tsheb. Nyob rau hauv qhov tseeb, lub tsheb nws tus kheej txiav txim seb qhov twg thiab hom ntawm malfunction nws muaj, thiab muab ib tug tej yam kev kuaj mob code rau lub ntaus ntawv, nrog rau kev pab los ntawm tus neeg tsav tsheb los yog tus tswv txiav txim lub malfunction thiab nrhiav txoj kev los kho nws.

xov p0420

Ib qho kev kuaj mob yuam kev ncaj ncees. Nyob rau hauv cov ntaub ntawv qhov chaw, thiab tsuas yog nyob rau hauv lub neej txhua hnub, cov tswv tsheb tuaj yeem hnov ntau cov ntaub ntawv, lus xaiv thiab cov lus qhia txog cov cai no. Cia peb saib seb nws tseem txhais li cas, hom kev ua haujlwm tsis zoo nws tuaj yeem tham txog, dab tsimuaj txoj hauv kev los daws qhov teeb meem no.

yuam kev p0420 txhais li cas

Koj pom koj lub teeb tswj ntawm koj lub dashboard tuaj. Koj tsav tsheb mus rau qhov kev pabcuam tsheb lossis kab tias luam theej lub tsheb koj tus kheej thiab pom tias qhov teeb meem tau nthuav tawm hauv daim ntawv p0420 code. Tom qab tso saib cov lis dej num, thawj zaug xyuas tias p0420 yog tus lej nkaus xwb. Yog tias tsis yog, lwm cov lej yuav tsum tau kuaj xyuas vim tias lawv tuaj yeem ua rau P0420. Yog vim li cas rau qhov no yog qhov transducer yog qhov kawg ntawm kev kuaj mob. Yeej, yog tias muaj teeb meem nrog ib qho ntawm cov sensors hauv lub cav lossis cov pa tawm, nws tuaj yeem ua rau txo qis lossis nce cov roj nkag mus rau hauv lub cav.

Yog li peb pom cov cai, thiab yog tias tsis muaj dab tsi ntxiv dua li p0420, nws feem ntau txhais tau tias koj lub cev catalytic efficiency qis dua qhov koj cov pa oxygen sensors yuav tsum ntsuas. Qhov no txhais tau hais tias muaj teeb meem nrog lub catalytic converter, lossis cov pa oxygen sensors, lossis ob qho tib si. Lub hom phiaj ntawm lub catalytic converter yog los rhuav tshem cov pa phem uas tsim thaum lub sij hawm combustion. Los ntawm kev siv cov platinum zoo thiab kub meshes los lim cov pa pa tawm, lub catalytic converter muaj peev xwm txo qis tailpipe emissions. Lub catalytic converter muaj ob lub pa oxygen sensors. Ib qho pa oxygen sensor yog nyob rau sab saud (sab sauv) ntawm lub catalytic converter thiab lwm qhov oxygen sensor nyob tom qab (kub). Yog pem hauv ntejCov pa oxygen sensor ua haujlwm zoo thiab yuav tsum hloov pauv thaum lub tsheb nyob ntawm qhov ntsuas kub thiab thaum khiav hauv lub voj kaw. Yog hais tias lub downstream oxygen sensor ua haujlwm zoo thiab tsis muaj teeb meem nrog lub catalytic converter, kev nyeem ntawv yuav tsum nyob ruaj khov. Thaum cov pa oxygen sensors muaj kev nyeem ntawv uas zoo sib xws, qhov no qhia tau hais tias lub catalytic converter tsis ua haujlwm zoo. Yog hais tias lub rear oxygen sensor voltage txo thiab pib oscillate zoo li lub hauv ntej oxygen sensor, cov pa oxygen siab dhau lawm thiab lub powertrain tswj module yuav tso saib yuam kev code P0420.

Dab tsi ua rau code p0420?

• Muffler puas lossis to.
• Cov khoom siv hluav taws xob puas lossis xau.
• Cov kav dej puas tsuaj.
• Musfire hauv lub cav.
• Cov roj tsis huv hauv lub catalytic converter.
• Faulty catalytic converter (feem ntau).
• Lub cav txias txias ntsuas qhov ntsuas kub.
• Faulty pem hauv ntej oxygen sensor.
• Faulty rear oxygen sensor.
• Kev puas tsuaj oxygen sensor thaiv.
• Kev sib txuas tsis raug oxygen sensor thaiv.
• Kev puas tsuaj oxygen sensor connectors.
• Luagroj injector.
• roj siab.
• Siv hom roj tsis raug (ua).

Tus kws kho tsheb kuaj mob li cas p0420?

• Siv OBD-II scanner txhawm rau khaws cov lej teeb meem khaws cia hauv PCM.

• Saib cov ntaub ntawv tam sim no ntawm cov dej ntws qis (rov qab) oxygen sensor. Txiav txim seb lub ntsuas pa oxygen puas ua haujlwm zoo.
• Tshaj tawm lwm cov lej uas yuav ua rau DTC p0420.
• Kho misfires, teeb meem ignition thiab roj system teeb meem raws li xav tau.
• Tshuaj xyuas cov pa oxygen sensor rau kev puas tsuaj thiab hnav ntau dhau.
• Tshawb xyuas PCM hloov tshiab yog tias lub catalytic converter ua haujlwm tsis raug. Tom qab hloov cov catalytic converter, PCM hloov tshiab yuav tsum tau.

Yam yuam kev thaum kuaj tus lej p0420

Qhov yuam kev tshaj plaws yog hloov cov pa oxygen sensors ua ntej ua tiav cov txheej txheem kuaj mob. Yog tias lwm cov khoom ua rau DTC P0420, hloov cov pa oxygen sensors yuav tsis kho qhov teeb meem.

p0420 hnyav npaum li cas?

Tus neeg tsav tsheb yuav tsum tsis txhob ntsib teeb meem yog tias muaj DTC p0420. Sib nrug ntawm lub teeb pom kev, cov tsos mob ntawm DTC no yuav tsis pom. Txawm li cas los xij, yog tias lub tsheb ua haujlwm nrogyuam kev thiab tsis daws qhov teeb meem no, lwm yam khoom yuav raug puas tsuaj loj. Txij li thaum tsis muaj teeb meem daws teeb meem nrog p0420, qhov no tsis suav tias yog qhov hnyav lossis txaus ntshai rau tus neeg tsav tsheb. Txawm li cas los xij, yog tias tus lej tsis raug kho raws sijhawm, lub catalytic converter yuav raug puas tsuaj loj. Vim tias lub catalytic converter yog kim kho, nws yog ib qho tseem ceeb uas yuav tsum tau kuaj DTC P0420 thiab kho kom sai li sai tau.

kho dab tsi tuaj yeem kho tus lej p0420?

• Hloov muffler thiab kho cov xau.
• Hloov cov pa tso pa tawm thiab kho cov xau.
• Replace tso pa tawm.
• Hloov cov catalytic converter (feem ntau).
• Hloov cav coolant kub sensor.
• Hloov pem hauv ntej lossis nram qab oxygen sensor.
• Kho lossis hloov cov xaim puas rau oxygen sensors.
• Kho lossis hloov oxygen sensor connectors.
• Hloov lossis kho cov roj injectors uas to.
• Xaiv ib qho kev kho rau ib qho teeb meem misfire.
• Tshuaj ntsuam xyuas thiab daws lwm yam teeb meem cuam tshuam nrog cov lej uas tau khaws cia los ntawm lub zog tswj hwm module (PCM).

Txoj kev yuam kev p0420

Ntau zauskoj tuaj yeem hla qhov taw qhia ua haujlwm tsis zoo tom qab refueling koj lub tsheb nrog roj tsis zoo. Kev ua yuam kev p0420 ntawm Ford Focus yog ib qho zoo sib xws, thiab cov qauv no yog cov qhua nquag ntawm kev pabcuam tsheb nrog cov cai no. Qhov ua rau ntawm qhov tsos yog qhov teeb meem nrog cov catalyst tau piav qhia saum toj no, nws raug daws los ntawm kev tshawb nrhiav cov laj thawj rau kev ua haujlwm tsis zoo ntawm lub catalytic converter. Muaj cov kev xaiv rau kev tshem tawm tag nrho cov catalyst, vim tias nws cov nqi siab tsis tuaj yeem hloov pauv nrog ib qho tshiab. Tab sis kev tshem tawm tsis daws qhov teeb meem ntawm kev ua yuam kev p0420 ntawm Ford. Yuav kom nws ploj mus thiab qhov ntsuas tsis thab koj, koj yuav tsum dag lub computer lossis sensor (lambda sojntsuam 2). Muaj ib txoj hauv kev siv tshuab, hluav taws xob thiab software los lov tes taw. Mechanically, lub sensor yog muab tso rau hauv lub manifold nrog ib tug spacer thiab ib lub qhov nyob rau hauv nws. Cov txheej txheem hluav taws xob cuam tshuam nrog kev txhim kho lub resistor hauv cov teeb liab thaiv, uas yuav tshem tawm p0420 code ntawm koj Ford. Cov txheej txheem software - qhov no yog lub firmware ntawm on-board computer system, yog qhov nyuaj tshaj plaws, vim hais tias ib tug muaj peev xwm tshwj xeeb nyob rau hauv hom kev ua ub no yuav tsum tau. Cov txheej txheem no feem ntau yuav pab kom dhau qhov yuam kev p0420 ntawm Ford Focus 2 thiab Ford Focus 3.

Tseem muaj cov kev pabcuam uas tsim thiab teeb tsa cov nplaim taws es tsis txhob siv cov catalyst. Piv txwv li, yog tias peb tab tom tham txog Mazda 3 (kev ua yuam kev p0420 feem ntau pom ntawm nws), rau nws txoj hauv kev los txhim kho qhov teeb meem no yog hloov cov catalytic converter nrog cov nplaim taws. Lwm txoj kev yog rau nruab ib lub catalyst emulator. Ib qho ntawm feem ntaunrov - Kab laug sab CE2, nws yooj yim txuas nrog lub cable mus rau tom qab catalyst sensor, thiab qhov teeb meem tau daws. Txoj kev no feem ntau siv rau kev ua yuam kev p0420 ntawm Toyota Corolla, vim tias nws yooj yim heev rau kev nkag mus rau cov xov hlau ntawm lambda sojntsuam. Kev siv lub emulator tsis ua haujlwm rau txhua kis.

Thaum muaj kev ua yuam kev p0420 ntawm Suzuki, cov neeg tsav tsheb nyiam tshem tawm cov catalytic converter thiab nyem lub tsheb lub hlwb mus rau tus qauv Euro-2 siv nti tuning. Ntawm qee tus qauv Suzuki, siv lub emulator tsis muaj txiaj ntsig, qhov yuam kev tseem tshwm sim thiab ua rau tag nrho cov txiaj ntsig tshwm sim. Txoj kev software firmware kuj tseem siv, txawm hais tias, raws li tau hais los saum no, nws nyuaj heev.

Peb yuav piav qhia txog txoj hauv kev nrov siv piv txwv ntawm kev ua yuam kev p0420 hauv Subaru. Rau cov tsheb ntawm lub hom no, muaj ib qho tshwj xeeb firmware rau lub chaw tswj, qhov twg cov kev ua yuam kev no yog neeg xiam thiab tsis tshwm sim dua. Qhov no daws qhov teeb meem nrog qhov taw qhia thiab cov txheej txheem on-board, tab sis tsuas yog tias nws cuam tshuam txog kev puas tsuaj lossis hnav ntawm cov pa oxygen thiab catalyst sensors.

Cov lus ntxiv los tshuaj xyuas cov lej p0420

Teeb meem nrog lub tshuab hluav taws xob, cov roj hluav taws xob, cua nkag thiab hluav taws xob tsis zoo tuaj yeem ua rau lub catalytic converter puas yog lawv tsis kho sai. Cov khoom no yog qhov ua rau DTC P0420 feem ntau. Hauv qee lub tsheb, vim qhov yuam kev no, kev tswj xyuas lub nkoj thiab lub zog ruaj khov nres ua haujlwm. Hauv lub tebchaws CIS, teeb meem nrogcatalyst tshwm sim vim qhov tsis zoo ntawm peb cov roj, uas tsis yog tsim los rau ib puag ncig qauv "Euro-3" thiab siab dua. Yog li ntawd, cov tsheb txawv teb chaws uas nws cov tshuab catalytic yog tsim los siv cov roj zoo tsis zoo. Txhua qhov teeb meem tau piav qhia yav dhau los nrog cov catalyst tshwm sim, thiab nws hnav sai sai, feem, qhia peb paub qhov yuam kev hauv kev kuaj mob.

Cov Lus Qhia

Yog tias qhov yuam kev thab koj, koj tsis xav tshem tawm cov catalytic converter, siv zog ua kom lub tsheb ua tau raws li cov qauv ib puag ncig, ces koj yuav tsum tau kho nws thiab tiv thaiv. Nov yog qee cov lus qhia muaj txiaj ntsig:

1. Cov khoom tshwj xeeb, xws li Catalytic Converter Cleaner, ntxuav cov catalytic converter, yog li txuas nws lub neej.
2. Roj tsuas yog ntawm cov chaw nres tsheb roj uas ntseeg siab thiab cov roj zoo. Txwv tsis pub, koj yuav tau hloov lub catalytic converter, thiab nws cov nqi yog heev.

Cov kev xaiv pheej yig dua los tiv thaiv qhov kev piav qhia yuam kev yog txhim kho emulators thiab rov ua haujlwm dua. Cov kev xaiv no yuav tsis ua rau lub tsheb ua tau zoo, thiab qee zaum txawm tias txhim kho nws.