P0451 Evaporator Emission System Siab Sensor Performance

P0451 – OBD-II Teeb meem Code Technical Description

Evaporative Emission Control Siab Sensor Range/Kev Ua Haujlwm

Qhov txhaum cai txhais li cas P0451?

Code P0451 - "Evaporative Emission System Pressure Sensor / Hloov"

Code P0451 yog tshwm sim thaum lub tsheb lub powertrain tswj module (PCM) pom qhov tsis raug lossis tsis ruaj khov voltage teeb liab los ntawm evaporative emission tswj system siab sensor.

Lub evaporative emissions control system (EVAP) yog tsim los ntes thiab kho cov roj vapors kom tsis txhob nkag mus rau hauv qhov chaw. Code P0451 qhia txog teeb meem nrog lub siab sensor hauv qhov system no.

Vim li cas muaj:

1. Faulty EVAP siab sensor.
2. Kev puas tsuaj hlau los yog hluav taws xob txuas nrog lub siab sensor.
3. Teeb meem nrog EVAP system, xws li xau lossis thaiv.
4. Kev ua haujlwm PCM tsis raug lossis lwm yam teeb meem hluav taws xob.

Nws raug nquahu kom koj hu rau tus kws kho tsheb uas tsim nyog lossis chaw pabcuam los txiav txim kom raug thiab kho qhov laj thawj.

Tej zaum ua rau

P0451 code tuaj yeem raug teeb tsa rau cov laj thawj hauv qab no:

• Faulty EVAP siab sensor.
• Loose los yog tsis muaj roj cap.
• Lub siab nyem valve hauv lub tank roj yog txhaws.
• Kev puas tsuaj, rhuav tshem lossis hlawv EVAP hoses / kab.
• Txhaum los yog tawg charcoal canister.

Feem ntau ntawm cov laj thawj no yog lub faulty fuel tank, faulty fuel tank transfer unit, qhib lossis shorted siab sensor lossis Circuit Court hauv roj tank siab sensor.

Cov tsos mob ntawm tus lej yuam kev yog dab tsi? P0451?

Cov tsos mob ntawm tus lej P0451 tej zaum yuav tsawg thiab suav nrog cov hauv qab no:

• Feem ntau cov mob uas tus lej P0451 tsis pom cov tsos mob.
• Tej zaum yuav muaj qhov txo qis hauv kev lag luam roj.
• Lub teeb pom kev tsis zoo (MIL) ntawm lub ntsuas ntsuas vaj huam sib luag los.

Yog tias koj lub tsheb tau tsim tus lej P0451, ces tej zaum koj yuav tsis muaj cov tsos mob hnyav. Feem ntau, qhov pom pom tsuas yog kos lub cav lub teeb ntawm koj lub dashboard tuaj. Txawm li cas los xij, ntxiv rau qhov ntsuas no, koj tuaj yeem pom qhov tsis hnov ​​​​tsw ntawm cov roj av emanating los ntawm lub cav, tshwm sim los ntawm kev tso tawm roj vapors.

Yuav ua li cas kuaj tau tus lej txhaum P0451?

Kev kuaj mob kom raug P0451 code tuaj yeem nyuaj. Cov tswv tsheb feem ntau nyiam tso siab rau txoj haujlwm no rau cov kws tshaj lij thiab xa lawv lub tsheb rau kev kuaj mob.

Cov txheej txheem kuaj mob feem ntau pib nrog tus kws tshaj lij nyeem cov lej khaws cia hauv lub tsheb PCM siv OBD-II scanner. Cov lej no raug txheeb xyuas thiab cov kws tshaj lij pib tshuaj xyuas txhua tus hauv kev txiav txim lawv tau muab khaws cia hauv PCM. Feem ntau, tom qab tus lej P0451, lwm cov lej sib txuas OBD-II kuj tseem tuaj yeem tshwm sim thiab khaws cia.

Tom qab lub scan tiav lawm, tus kws kho mob ua ib qho kev kuaj pom ntawm lub tsheb thiab tag nrho cov sensors thiab modules cuam tshuam.

Kev txheeb xyuas thiab kuaj xyuas tus lej P0451 yog txoj haujlwm nyuaj thiab pom zoo kom tso tseg rau tus kws tshaj lij. Tsis txhob sim kuaj xyuas koj tus kheej, nws yog qhov zoo dua los tig mus rau cov kws paub txog kev paub.

Tom qab luam theej duab thiab txheeb xyuas cov cai, tus kws tshaj lij yuav pib nrog kev tshuaj xyuas qhov muag, thaum lub sijhawm nws yuav tshuaj xyuas cov xaim, txuas, thiab cov kab hluav taws xob puas. Thaum pom qhov yuam kev raug daws, P0451 code yuav raug tshem tawm thiab lub kaw lus yuav raug kuaj xyuas dua.

Yog tias tus kws tshaj lij xav tias txhua yam nyob rau hauv kev txiav txim, nws yuav mus xyuas lub charcoal canister, ntxuav lub valve, nqus tsev vacuum thiab chav hoses, thiab tag nrho lwm yam khoom txuam nrog evaporative emission tswj system. Txhua yam yuav raug kuaj xyuas thiab, yog tias tsim nyog, kho. Tom qab ntawd cov lej yuav raug tshem tawm thiab lub cav rov kuaj xyuas kom txog thaum qhov teeb meem code raug daws.

Thov nco ntsoov tias cov npe ncauj lus kom ntxaws ntxiv ntawm cov chaw pabcuam nyob ze koj tuaj yeem pom ntawm KBB Service Center List.

Thaum kuaj xyuas tus lej P0451, cov cuab yeej thiab cov kauj ruam hauv qab no yuav xav tau:

• Diagnostic scanner.
• Digital volt / ohmmeter.
• Ib qho kev ntseeg siab ntawm cov ntaub ntawv hais txog koj lub tsheb, xws li Txhua Cov Ntaub Ntawv DIY.
• Tshuab pa luam yeeb (tejzaum).
• Saib xyuas EVAP qhov system hoses thiab kab, nrog rau cov hlua hluav taws xob thiab cov khoom sib txuas.
• Sau cov ntaub ntawv code thiab khov cov ntaub ntawv.
• Tshawb xyuas EVAP qhov system siab siv kev kuaj xyuas ntws (scanner).
• Tshawb xyuas EVAP siab sensor.
• Txheeb xyuas cov hluav taws xob hluav taws xob siv DVOM.
• Hloov cov tawg lossis luv luv raws li qhov tsim nyog.

Nco ntsoov tias qhov qis lossis siab EVAP siab tuaj yeem ua rau P0451 tshwm sim, thiab nws tuaj yeem tshwm sim los ntawm cov teeb meem hluav taws xob lossis tshuab.

Kev kuaj mob yuam kev

Tsis quav ntsej lwm cov lej yuam kev

Ib qho yuam kev thaum kuaj pom tus lej P0451 yog tsis quav ntsej lwm cov lej teeb meem. Yog tias muaj teeb meem nrog evaporative emission control (EVAP) system, lwm yam teeb meem cuam tshuam kuj tuaj yeem tshwm sim, xws li P0440, P0442, P0452, thiab lwm yam. Kev tsis quav ntsej cov lej ntxiv no yuav ua rau tsis muaj cov ntsiab lus tseem ceeb thiab ua rau cov txheej txheem kuaj mob nyuaj.

Kev kuaj tsis pom ntawm EVAP system

Lwm qhov yuam kev yog tsis kuaj xyuas EVAP qhov pom kev txaus. Qee zaum qhov teeb meem tuaj yeem tshwm sim los ntawm cov hoses puas, cov khoom sib txuas, lossis cov dej xau hauv qhov system. Tsis siv sijhawm los saib xyuas cov khoom no ua rau nws nyuaj rau txheeb xyuas lub hauv paus ntawm qhov teeb meem.

Tsis txhob ua tiav kev kuaj mob

Qhov yuam kev kuj yog nyob rau hauv qhov tseeb tias kev kuaj mob tsuas yog kev nyeem cov lej yuam kev thiab hloov EVAP siab sensor. Cov cai no tuaj yeem tshwm sim los ntawm ntau yam laj thawj, thiab tsis muaj kev tswj xyuas qhov hloov pauv ntawm lub sensor yam tsis muaj kev kuaj mob tob dua tuaj yeem yog qhov ntsuas tsis zoo thiab kim.

Txoj cai txhaum loj npaum li cas? P0451?

Code P0451 yog ib qho ntawm OBD-II cov lej loj tshaj plaws. Feem ntau tsuas yog cov tsos mob tshwm sim yog lub teeb pom kev ntawm lub cav los ntawm koj lub tsheb dashboard. Txawm li cas los xij, txawm hais tias tsis muaj cov tsos mob pom tseeb, koj lub tsheb tuaj yeem tso cov pa phem thiab tsis zoo rau cov pa roj av thiab cov ntxhiab tsw. Yog li ntawd, nws yog ib qho tseem ceeb uas yuav tsum muaj ib tus kws tshaj lij xyuas koj lub tsheb thiab kho qhov teeb meem ntawm kev txaus siab ntawm kev noj qab haus huv thiab kev nyab xeeb.

Kev kho dab tsi yuav pab tshem tawm cov cai? P0451?

Cov kev kho hauv qab no yuav tsum tau daws qhov chaws P0451:

1. Hloov lossis kho EVAP siab sensor yog tias nws ua yuam kev.
2. Tshawb xyuas thiab hloov lub hau roj tank yog tias nws ploj lawm lossis puas lawm.
3. Ntxuav los yog hloov cov roj tank siab nyem valve yog tias nws txhaws los yog ua txhaum.
4. Xyuas thiab hloov tag nrho cov EVAP hoses thiab kab puas lawm puas lawm.
5. Hloov cov kua roj carbon lim dej uas tawg lossis tawg yog tias nws puas lawm.

Nws raug nquahu kom kuaj xyuas thiab kho kho los ntawm cov kws tshaj lij uas tsim nyog raws li kev kuaj mob P0451 yuav xav tau cov cuab yeej tshwj xeeb thiab kev paub dhau los.

Yuav kho P0451 Cav Code li cas hauv 3 feeb [2 Txoj Kev DIY / Tsuas yog $4.35]

P0451 - Cov ntaub ntawv tshwj xeeb ntawm hom

Teeb meem code P0451 yog ib txoj cai hais txog lub vapor emissions system siab sensor / hloov. Cov cai no tuaj yeem siv rau ntau hom tsheb uas nruab nrog OBD-II system. Nov yog P0451 cov lus txhais rau qee lub npe tshwj xeeb:

1. Chevrolet/GMC: P0451 txhais tau tias "Evaporative Emission System Pressure Sensor / Hloov". Qhov no yog ib txoj cai uas cuam tshuam nrog evaporative emissions tswj system.
2. Ford: P0451 yog txhais ua "Fuel Tank Pressure Sensor". Cov cai no qhia txog teeb meem nrog lub siab nyob rau hauv cov roj tank system.
3. Toyota: P0451 txhais tau tias "EVAP System Siab Sensor yuam kev." Cov cai no muaj feem xyuam rau EVAP system thiab nws cov kev siab.
4. Volkswagen / Audi: P0451 tuaj yeem txiav txim siab ua "EVAP System Pressure Sensor". Qhov no yog vim lub evaporative emissions tswj system.
5. Dodge/Ram: P0451 txhais tau tias "EVAP System Siab Sensor yuam kev." Cov cai no muaj feem xyuam nrog EVAP system.

Thov nco ntsoov tias cov lus piav qhia meej ntawm cov cai yuav txawv me ntsis nyob ntawm qhov tsim thiab qauv ntawm lub tsheb tshwj xeeb, yog li nws yog ib txwm pom zoo kom kuaj xyuas cov kev pabcuam thiab kho phau ntawv qhia rau koj lub tsheb tshwj xeeb lossis sab laj tus kws kho tsheb uas tsim nyog rau kev kuaj mob thiab kho kom raug. .