P0442 Cov xau me me hauv cov roj vapor tswj qhov system

P0442 – OBD-II Teeb meem Code Technical Description

Teeb meem code P0442 qhia tias muaj teeb meem nrog lub evaporative tswj system. Lwm cov lej yuam kev kuj tseem tuaj yeem tshwm sim nrog rau cov lej no.

Qhov txhaum cai txhais li cas P0442?

Teeb meem code P0442 qhia txog kev xau me me hauv lub tsheb evaporative emission system. Qhov no txhais tau hais tias lub kaw lus tuaj yeem xau me me ntawm cov roj vapor, uas tuaj yeem ua rau lub cev tsis muaj txiaj ntsig zoo thiab muaj cov pa phem ntau ntxiv rau hauv ib puag ncig.

Tej zaum ua rau

Qee qhov ua tau rau P0442 teeb meem code yog:

• Roj tank cap malfunction: Lub foob tsis zoo lossis kev puas tsuaj rau lub hau yuav ua rau cov roj vapor xau.
• Teeb meem nrog evaporative capture valve (CCV): Yog tias cov roj vapor ntes valve tsis kaw kom raug, vapor leaks yuav tshwm sim.
• Kev puas tsuaj los yog txhaws roj hoses thiab kev sib txuas: Cov hoses puas lossis txhaws tuaj yeem ua rau roj vapor xau.
• Malfunctions ntawm roj vapor siab sensor: Yog tias cov roj vapor siab sensor faulty, nws yuav tsis pom qhov xau kom raug.
• Kev puas tsuaj los yog hnav cov ntsaws ruaj ruaj thiab gaskets: Kev puas tsuaj los yog hnav cov ntsaws ruaj ruaj nyob rau hauv evaporative emission system tuaj yeem ua rau xau.
• Teeb meem nrog lub cav tswj module (ECM): Cov teeb liab tsis raug los ntawm kev tswj module tuaj yeem ua rau cov lej kuaj tsis raug.
• Leaks nyob rau hauv lwm yam evaporative emission system Cheebtsam: Qhov no tej zaum yuav muaj xws li li qub, lim dej thiab lwm yam hauv lub cev.

Nws yog ib qho tseem ceeb uas yuav tau kuaj xyuas kom meej los txiav txim seb qhov twg yog qhov ua rau P0442 teeb meem code thiab kho qhov tsim nyog.

Cov tsos mob ntawm tus lej yuam kev yog dab tsi? P0442?

Teeb meem code P0442 tej zaum yuav muaj tsawg los yog tsis muaj tsos mob vim hais tias qhov teeb meem yog ib tug me me roj vapor leak, tab sis nyob rau hauv tej rooj plaub cov tsos mob yuav tshwm sim:

• Xyuas lub cav teeb rau: Ib qho ntawm cov tsos mob pom tseeb tshaj plaws yog lub teeb pom kev ntawm lub cav ntawm koj lub dashboard tuaj. Qhov no tej zaum yuav yog thawj lub cim ntawm ib qho teeb meem.
• Roj tsw qab: Tej zaum yuav muaj roj tsw qab nyob ib ncig ntawm lub tsheb, tshwj xeeb tshaj yog nyob rau hauv cov roj tank.
• Kev soj ntsuam tsis txaus siab lossis cov txiaj ntsig emissions: Yog tias lub tsheb tab tom raug kuaj xyuas lossis kev ntsuas emissions, P0442 code yuav ua rau muaj qhov tsis txaus siab vim nws qhia tias muaj teeb meem nrog cov evaporative emission control system.
• Poob roj: Muaj tsawg zaus, yog tias qhov xau ua qhov tseem ceeb txaus, nws yuav ua rau poob roj.
• Kev lag luam roj tsis zoo: Cov pa roj me me tuaj yeem cuam tshuam rau kev lag luam roj, txawm tias qhov no yuav nyuaj rau kev ceeb toom yam tsis tau siv cov cuab yeej tshwj xeeb.

Yog tias koj xav tias muaj teeb meem nrog koj lub evaporative emission control system lossis yog tias koj lub teeb Check Engine los, nws raug nquahu kom koj hu rau tus kws tshaj lij rau kev kuaj mob thiab kho.

Yuav ua li cas kuaj tau tus lej txhaum P0442?

Txhawm rau kuaj xyuas DTC P0442, ua raws li cov kauj ruam no:

1. Xyuas cov roj theem: Xyuas kom tseeb tias cov roj theem hauv lub tank yog nruab nrab ntawm 15% thiab 85%. Qee lub tshuab evaporative emission tswj yuav ua tsis tau qhov kev sim yog tias lub tank puv dhau lossis khoob dhau lawm.
2. Kev soj ntsuam: Tshawb xyuas cov roj tank, hau, roj hoses, thiab lwm yam evaporative emission system Cheebtsam kom pom kev puas tsuaj lossis xau.
3. Xyuas lub locking cap: Txheeb xyuas tias lub hau roj tank tau ntsia hlau kom raug. Xyuas kom tseeb tias lub foob ntawm lub hau yog nyob rau hauv qhov zoo.
4. Txheeb xyuas qhov evaporative tswj valve (CCV): Txheeb xyuas qhov kev ua haujlwm ntawm evaporative tswj valve rau cov dej xau lossis ua haujlwm tsis zoo.
5. Xyuas cov roj vapor siab sensor: Txheeb xyuas qhov ua haujlwm ntawm cov roj vapor siab sensor rau kev ua haujlwm tsis zoo.
6. Siv lub tshuab kuaj kab mob: Txuas lub tshuab kuaj kab mob rau lub tsheb OBD-II chaw nres nkoj thiab nyeem cov lej yuam kev. Qhov no yuav txiav txim siab seb P0442 code tau tsim nrog rau lwm cov lej thiab yuav muab cov ntaub ntawv ntxiv txog cov xwm txheej ntawm lub kaw lus.
7. Kev sim haus luam yeeb: Yog tias tsim nyog, kuaj cov pa luam yeeb tuaj yeem ua kom pom cov roj vapor xau. Kev kuaj pa luam yeeb yog ua los ntawm kev siv cov cuab yeej tshwj xeeb uas txhaj cov pa luam yeeb rau hauv lub cev thiab tom qab ntawd kuaj pom cov pa xau los ntawm kev kuaj pom.

Tom qab ua tiav cov kauj ruam no, koj tuaj yeem txiav txim siab qhov ua rau ntawm P0442 code thiab pib qhov tsim nyog kho lossis hloov cov khoom siv.

Kev kuaj mob yuam kev

Thaum kuaj pom DTC P0442, cov teeb meem hauv qab no yuav tshwm sim:

• Hla qhov ntsuas roj: Ib qib roj uas tsis suav nrog hauv lub tank tuaj yeem ua rau tsis raug evaporative leak test.
• Kev txhais tsis raug ntawm kev soj ntsuam pom qhov tshwm sim: Qee qhov dej xau yuav nyuaj rau pom qhov pom, tshwj xeeb tshaj yog tias lawv nyob rau hauv qhov nyuaj mus txog qhov chaw.
• Kev txheeb xyuas tsis raug: Kev txhais cov lej yuam kev yuav tsis raug, uas yuav ua rau hloov cov khoom tsis tsim nyog.
• Kev siv tsis txaus ntawm kev kuaj mob scanner: Kev siv tsis raug lossis kev nyeem tsis tiav ntawm cov ntaub ntawv siv lub tshuab kuaj kab mob tuaj yeem ua rau kev txiav txim tsis raug ntawm qhov ua rau yuam kev.
• Tsis muaj kev kuaj ntxiv: Qee qhov teeb meem ntawm evaporative emission system tuaj yeem nyuaj rau kev kuaj mob thiab xav tau kev sim ntxiv xws li kev sim pa luam yeeb lossis kev kuaj dej xau siv cov cuab yeej tshwj xeeb.
• Hla mus xyuas lwm qhov system Cheebtsam: Xyuas kom meej tias tag nrho cov khoom ntawm cov evaporative emission system raug kuaj xyuas kom muaj cov pa xau lossis ua haujlwm tsis zoo txhawm rau tshem tawm cov teeb meem tshwm sim.

Nws yog ib qho tseem ceeb uas yuav tsum tau ceev faj thiab cov txheej txheem thaum kuaj xyuas P0442 teeb meem code kom tsis txhob ua yuam kev thiab txiav txim siab qhov ua rau qhov teeb meem. Yog tias koj muaj kev tsis txaus siab lossis tsis tuaj yeem txiav txim siab qhov ua rau ntawm qhov yuam kev, nws yog qhov zoo dua los tiv tauj tus kws tshaj lij lossis tus kws kho tsheb.

Txoj cai txhaum loj npaum li cas? P0442?

Teeb meem code P0442 feem ntau tsis yog ib qho kev hem thawj loj rau kev nyab xeeb lossis kev ua haujlwm tam sim ntawm lub tsheb, tab sis nws qhia tau hais tias muaj teeb meem hauv cov evaporative emission system, uas tuaj yeem ua rau muaj ntau yam tsis zoo:

• Tej yam tshwm sim: Roj vapor xau tuaj yeem tso cov khoom tsis zoo rau hauv ib puag ncig, uas tuaj yeem cuam tshuam rau ib puag ncig thiab tib neeg kev noj qab haus huv.
• Poob roj: Yog tias muaj roj vapor xau tseem ceeb, tej zaum yuav muaj qhov poob ntawm cov roj, uas tsis yog tsuas yog ua rau tus nqi ntawm refueling, tab sis kuj tuaj yeem ua rau muaj roj tsw qab nyob ib ncig ntawm lub tsheb.
• Kev soj ntsuam tsis txaus ntseeg: Yog tias lub tsheb tsis raug tshuaj xyuas vim yog tus lej P0442, nws yuav ua rau muaj teeb meem rau npe lossis kev pabcuam.

Thaum P0442 code nws tus kheej feem ntau tsis yog qhov teeb meem loj heev, nws yuav tsum tau xav txog kev ceeb toom tias evaporative emission system Cheebtsam yuav tsum tau kho lossis hloov. Nws tsis pom zoo kom tsis quav ntsej cov cai no vim nws tuaj yeem ua rau muaj roj ntau ntxiv thiab teeb meem loj dua yav tom ntej.

Kev kho dab tsi yuav pab tshem tawm cov cai? P0442?

Kev daws teeb meem DTC P0442 feem ntau suav nrog cov hauv qab no:

1. Xyuas cov roj tank cap: Thawj kauj ruam yog xyuas cov roj tank hau. Xyuas kom tseeb tias lub hau yog screwed rau kom raug thiab lub foob nyob rau hauv zoo. Hloov lub hau yog tias tsim nyog.
2. Tshawb xyuas Vapor Capture Valve (CCV): Txheeb xyuas qhov kev ua haujlwm ntawm evaporative tswj valve rau cov dej xau lossis ua haujlwm tsis zoo. Yog tias pom muaj teeb meem, hloov lub valve.
3. Tshawb xyuas cov roj hoses thiab kev sib txuas: Tshawb xyuas thiab xyuas tag nrho cov roj hoses thiab cov kev sib txuas rau kev xau lossis kev puas tsuaj. Hloov cov khoom puas los yog hnav.
4. Tshawb xyuas cov roj vapor siab sensor: Txheeb xyuas qhov ua haujlwm ntawm cov roj vapor siab sensor rau kev ua haujlwm tsis zoo. Hloov lub sensor yog tias tsim nyog.
5. Kev kuaj ntxiv thiab kev kuaj mob: Ua ib qho kev ntsuam xyuas ntxiv, xws li kuaj cov pa luam yeeb, txhawm rau txheeb xyuas cov roj vapor xau yog tias tsim nyog.
6. Clearing yuam kev thiab rechecking: Tom qab ua tiav qhov kev kho, tshem tawm qhov yuam kev uas siv cov cuab yeej kuaj xyuas thiab rov kuaj xyuas kom paub meej tias qhov teeb meem raug daws.
7. Hloov lub Cav Tswj Module (ECM): Muaj tsawg zaus, qhov teeb meem yuav yog vim ECM tsis raug. Hauv qhov no, nws yuav tsim nyog los hloov cov tswj module.

Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias kev kho qhov tseeb yog nyob ntawm qhov ua rau ntawm P0442 code hauv koj lub tsheb. Yog tias koj tsis paub meej txog koj qhov kev txawj ntse lossis tsis tuaj yeem txiav txim siab qhov laj thawj ntawm koj tus kheej, nws raug nquahu kom koj hu rau tus kws kho tsheb tus kws tshaj lij txhawm rau kuaj xyuas thiab kho.

Yuav kho P0442 Cav Code li cas hauv 3 feeb [2 Txoj Kev DIY / Tsuas yog $4.67]

P0442 - Cov ntaub ntawv tshwj xeeb ntawm hom

Teeb meem code P0442 tuaj yeem tshwm sim ntawm ntau lub tsheb thiab qhia txog teeb meem nrog cov evaporative emission tswj system. Nov yog cov npe ntawm qee lub tsheb hom nrog P0442 chaws:

1. Toyota / Lexus: Ib qho xau tau kuaj pom hauv evaporative emission control system (me me xau).
2. Ford: Ib qho xau tau kuaj pom hauv evaporative emission control system (me me xau).
3. Chevrolet / GMC: Ib qho xau tau kuaj pom hauv evaporative emission control system (me me xau).
4. Honda/Acura: Ib qho xau tau kuaj pom hauv evaporative emission control system (me me xau).
5. Nissan / Infiniti: Ib qho xau tau kuaj pom hauv evaporative emission control system (me me xau).
6. Dodge / Chrysler / Jeep: Ib qho xau tau kuaj pom hauv evaporative emission control system (me me xau).
7. Subaru: Ib qho xau tau kuaj pom hauv evaporative emission control system (me me xau).
8. Volkswagen/Audi: Ib qho xau tau kuaj pom hauv evaporative emission control system (me me xau).
9. BMW/MINI: Ib qho xau tau kuaj pom hauv evaporative emission control system (me me xau).
10. Hyundai/Kia: Ib qho xau tau kuaj pom hauv evaporative emission control system (me me xau).
11. Mazda: Ib qho xau tau kuaj pom hauv evaporative emission control system (me me xau).
12. Volvo: Ib qho xau tau kuaj pom hauv evaporative emission control system (me me xau).

Cov no tsuas yog qee qhov piv txwv thiab txhua tus neeg tsim khoom siv lawv cov lus los piav txog DTC no. Nws yog ib qho tseem ceeb kom xa mus rau cov lus qhia tshwj xeeb thiab cov ntaub ntawv cuam tshuam nrog koj tus qauv tsheb tshwj xeeb kom paub meej ntxiv.