P0440 Kev ua haujlwm tsis zoo ntawm kev tswj hwm kev tshem tawm cov pa roj

P0440 – OBD-II Teeb meem Code Technical Description

Teeb meem code P0440 qhia txog kev ua haujlwm tsis zoo ntawm evaporative tswj system.

Qhov txhaum cai txhais li cas P0440?

Teeb meem code P0440 qhia tias muaj teeb meem nrog evaporative control (EVAP) system. Qhov no txhais tau hais tias lub cav tswj module (ECM) tau kuaj pom cov pa xau hauv cov evaporative capture system los yog malfunctioning evaporative siab sensor.

Tej zaum ua rau

Qee qhov laj thawj rau P0440 teeb meem code:

• Los ntawm evaporative emission system: Feem ntau yog vim li cas yog cov pa paug nyob rau hauv cov roj vapor capture system, xws li ib tug puas los yog disconnected roj tank, roj kab, gaskets los yog li qub.
• Tsis zoo roj vapor siab sensor: Yog tias cov roj vapor siab sensor ua haujlwm tsis raug lossis ua tsis tiav, qhov no tuaj yeem ua rau P0440 code tshwm.
• Malfunction ntawm roj vapor capture valve: Cov teeb meem nrog lub evaporative tswj valve, xws li txhaws los yog nplaum, tuaj yeem ua rau cov evaporative tswj system ua rau tawg lossis ua haujlwm tsis zoo.
• Teeb meem nrog lub hau roj tank: Kev ua haujlwm tsis raug lossis kev puas tsuaj rau lub hau roj tank yuav ua rau cov roj vapor to thiab yog li P0440.
• Teeb meem nrog cov roj tank qhov cua tshuab: Kev ua haujlwm tsis raug lossis kev puas tsuaj rau cov roj tank qhov cua tshuab cov khoom xws li hoses lossis li qub kuj tseem tuaj yeem ua rau cov roj vapor to thiab ua rau cov lus yuam kev no tshwm sim.
• Engine Control Module (ECM) malfunction: Qee zaum qhov ua rau tuaj yeem yog vim qhov ua haujlwm tsis zoo ntawm lub cav tswj module nws tus kheej, uas tsis raug txhais cov teeb liab los ntawm cov sensors lossis tsis tuaj yeem tswj cov evaporative emission system kom raug.

Cov tsos mob ntawm tus lej yuam kev yog dab tsi? P0440?

Feem ntau, P0440 teeb meem code tsis nrog cov tsos mob pom tseeb uas yuav pom tau rau tus neeg tsav tsheb thaum tsav tsheb, tab sis qee zaum cov tsos mob hauv qab no yuav tshwm sim:

• Tshawb xyuas lub teeb pom kev zoo: Cov tsos mob tseem ceeb ntawm P0440 code tej zaum yuav yog qhov tshwm sim ntawm lub teeb Check Engine ntawm koj lub tsheb dashboard. Qhov no qhia tau hais tias lub cav tswj qhov system tau kuaj pom ib qho malfunction.
• Kev ua haujlwm me me degradation: Muaj tsawg zaus, yog tias cov roj vapor xau tseem ceeb txaus, nws yuav ua rau muaj kev cuam tshuam me ntsis hauv kev ua haujlwm ntawm lub cav xws li kev khiav haujlwm lossis kev ua haujlwm tsis zoo.
• Roj tsw qab: Yog tias muaj roj vapor xau tshwm sim nyob ze ntawm lub tsheb sab hauv, tus neeg tsav tsheb lossis cov neeg caij tsheb yuav hnov ​​​​tsw roj hauv lub tsheb.
• Kev siv roj ntau ntxiv: Nws yog qhov ua tau tias cov roj vapor leakage tuaj yeem ua rau muaj roj ntau ntxiv vim tias lub kaw lus yuav tsis tuaj yeem ntes thiab ua cov roj vapor zoo.

Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias cov tsos mob no kuj tuaj yeem tshwm sim los ntawm lwm yam teeb meem nrog rau kev tswj evaporative, nrog rau lwm yam teeb meem ntawm lub cav. Yog li ntawd, nws raug pom zoo kom ua tiav kev kuaj mob siv lub tshuab scanner kom raug txiav txim siab qhov ua rau P0440 code.

Yuav ua li cas kuaj tau tus lej txhaum P0440?

Kev kuaj mob rau DTC P0440 feem ntau suav nrog cov hauv qab no:

1. Txheeb xyuas qhov ntsuas ntsuas lub cav: Ua ntej, koj yuav tsum txuas OBD-II scanner rau koj lub tsheb qhov chaw kuaj mob thiab nyeem P0440 yuam kev code. Qhov no yuav pab kom paub meej qhov teeb meem thiab pib kuaj mob ntxiv.
2. Kev kuaj pom ntawm cov roj vapor rov qab system: Tshawb xyuas cov evaporative tswj system, suav nrog cov roj tank, roj kab, li qub, evaporative rov qab valve, thiab roj tank kom pom kev puas tsuaj, xau, lossis ua haujlwm tsis zoo.
3. Tshawb xyuas cov roj vapor siab sensor: Txheeb xyuas cov roj vapor siab sensor kom pom cov teeb liab raug. Yog hais tias lub sensor yog faulty, nws yuav tsum tau hloov.
4. Kev ntsuas evaporative Capture Valve: Txheeb xyuas qhov kev ua haujlwm ntawm cov evaporative tswj valve rau kev thaiv los yog nplaum. Ntxuav lossis hloov lub valve raws li qhov tsim nyog.
5. Xyuas cov roj tank cap: Txheeb xyuas qhov xwm txheej thiab kev ua haujlwm zoo ntawm lub hau roj tank. Xyuas kom tseeb tias nws tsim ib lub foob kom raug thiab tsis pub roj vapors khiav.
6. Xyuas cov roj tank qhov cua qhov system: Txheeb xyuas qhov xwm txheej ntawm cov roj tank qhov cua qhov system hoses thiab li qub rau kev puas tsuaj lossis thaiv.
7. Tshawb xyuas lub Cav Tswj Module (ECM): Ntsuam xyuas lub cav tswj module (ECM) kom ntseeg tau tias nws ua haujlwm raug thiab nyeem cov cim sensor kom raug.
8. Kev kuaj ntxiv: Yog tias tsim nyog, ua qhov kev ntsuam xyuas ntxiv xws li kev ntsuas kev tiv thaiv hauv Circuit Court tswj lossis kuaj cov pa luam yeeb kom pom cov pa tawm.

Tom qab ua tiav cov kauj ruam no, koj tuaj yeem txiav txim siab qhov ua rau ntawm P0440 code thiab pib ua qhov tsim nyog kho lossis hloov cov khoom siv.

Kev kuaj mob yuam kev

Thaum kuaj pom DTC P0440, cov teeb meem hauv qab no yuav tshwm sim:

• Kev kho tsis tsim nyog lossis hloov cov khoom siv: P0440 code tuaj yeem tshwm sim los ntawm ntau qhov teeb meem sib txawv nrog rau kev tswj cov evaporative emissions. Kev kuaj mob tsis raug tuaj yeem ua rau tsis tsim nyog hloov cov khoom, uas tuaj yeem ua haujlwm tsis zoo thiab raug nqi.
• Hla cov txheej txheem kuaj mob tseem ceeb: Yuav tsum tau ua tiav kev kuaj mob ntawm evaporative emission tswj system, suav nrog kev tshuaj xyuas qhov muag, sensors, li qub, thiab kev ntsuas ntsuas hluav taws xob. Kev hla cov kauj ruam tseem ceeb tuaj yeem ua rau ploj lawm lub hauv paus ntawm qhov teeb meem.
• Tsis quav ntsej lwm cov lej yuam kev: Qee lub sij hawm tus lej P0440 tuaj yeem nrog rau lwm cov lej yuam kev uas tseem yuav tsum tau kuaj xyuas thiab kho. Tsis quav ntsej lwm cov lej yuam kev yuav ua rau tsis tiav kev kuaj mob thiab kho qhov yuam kev.
• Kev txhais tsis raug ntawm cov ntaub ntawv scanner: Qee lub sij hawm cov ntaub ntawv tau txais los ntawm lub tshuab luam ntawv tuaj yeem txhais tsis raug, uas tuaj yeem ua rau kev kuaj mob tsis raug. Nws yog ib qho tseem ceeb kom txheeb xyuas cov ntaub ntawv scanner kom raug thiab nrhiav cov pov thawj ntxiv ntawm qhov teeb meem.
• Kev kuaj tsis txaus: Qee cov khoom siv, xws li li qub lossis cov sensors, yuav tsis ua haujlwm tau zoo tab sis tsim cov teeb liab uas zoo li qub thaum kuaj. Kev sim tsis txaus tuaj yeem ua rau muaj teeb meem zais tsis tau.
• Tsis muaj qhov tseeb thiab ceev faj: Thaum kuaj xyuas cov roj hluav taws xob, koj yuav tsum tau ceev faj thiab ceev faj kom tsis txhob muaj cov khoom puas los yog igniting roj vapors.

Txoj cai txhaum loj npaum li cas? P0440?

Teeb meem code P0440, uas qhia txog teeb meem nrog lub evaporative emission system, feem ntau tsis tseem ceeb rau kev nyab xeeb lossis kev ua haujlwm ntawm lub tsheb. Txawm li cas los xij, nws cov tsos mob tuaj yeem qhia txog cov teeb meem uas tuaj yeem ua rau muaj kev puas tsuaj rau lub cev emission, nce emissions ntawm cov pa phem thiab cuam tshuam tsis zoo rau ib puag ncig.

Txawm hais tias lub tsheb nrog tus lej P0440 tuaj yeem ua haujlwm li qub, nws raug nquahu kom koj muaj kev kuaj mob thiab kho qhov teeb meem sai li sai tau. Kev ua tsis tiav qhov ua rau ntawm P0440 code yuav ua rau muaj kev puas tsuaj ntxiv rau cov evaporative emission tswj system thiab nce emissions ntawm cov khoom tsis zoo rau hauv ib puag ncig. Tsis tas li ntawd, hauv qee qhov kev txiav txim siab, lub tsheb nrog DTC nquag tuaj yeem ua tsis tiav kev tshuaj xyuas lossis kev ntsuas emissions, uas tuaj yeem ua rau raug nplua lossis lwm yam tsis zoo.

Zuag qhia tag nrho, txawm hais tias tus lej P0440 tsis yog qhov xwm txheej ceev, nws tseem xav tau kev saib xyuas thiab kho kom koj lub tsheb khiav zoo thiab txo qis kev puas tsuaj rau ib puag ncig.

Kev kho dab tsi yuav pab tshem tawm cov cai? P0440?

Kev daws teeb meem DTC P0440 feem ntau yuav tsum muaj cov kauj ruam hauv qab no:

1. Nrhiav thiab kho cov xau: Ua ntej, ib qho kev xau hauv cov evaporative emission system yuav tsum tau pom thiab kho. Qhov no yuav suav nrog kev hloov cov ntsaws ruaj ruaj uas puas lossis hnav, gaskets, li qub lossis hoses.
2. Tshawb xyuas thiab hloov cov roj vapor siab sensor: Yog tias cov roj vapor siab sensor faulty, nws yuav tsum tau hloov. Koj yuav tsum xyuas kom meej tias lub sensor tshiab ua tau raws li cov chaw tsim khoom tshwj xeeb.
3. Tshawb xyuas thiab ntxuav cov roj vapor capture valve: Yog hais tias lub evaporative tswj valve raug thaiv los yog daig, nws yuav tsum tau ntxuav los yog hloov nyob ntawm seb tus mob.
4. Tshawb xyuas thiab hloov lub hau roj tank: Yog hais tias lub hau roj tank puas lawm los yog faulty, nws yuav tsum tau hloov.
5. Xyuas thiab hloov lwm yam evaporative emission system Cheebtsam: Qhov no tej zaum yuav muaj xws li li qub, hoses, lim thiab lwm yam hauv lub cev uas yuav puas los yog ua haujlwm tsis zoo.
6. Ntsuas thiab kho lwm yam teeb meem: Yog tias tsim nyog, kev kuaj xyuas thiab kho ntxiv kuj tseem yuav raug rau lwm yam teeb meem, xws li faulty engine control module (ECM) lossis lwm yam sensors.

Nws yog ib qho tseem ceeb uas yuav tau kuaj xyuas kom meej txhawm rau txheeb xyuas qhov ua rau ntawm P0440 code ua ntej kev kho. Yog tias koj tsis muaj kev paub dhau los lossis cov cuab yeej tsim nyog, nws raug nquahu kom koj hu rau tus kws kho tsheb tsim nyog lossis chaw pabcuam rau kev kuaj mob thiab kho.

Yuav kho P0440 Cav Code li cas hauv 3 feeb [2 Txoj Kev DIY / Tsuas yog $4.73]

P0440 - Cov ntaub ntawv tshwj xeeb ntawm hom

Teeb meem code P0440 tuaj yeem tshwm sim ntawm ntau lub tsheb, qee qhov ntawm lawv cov ntsiab lus:

• Chevrolet, GMC, Cadillac: P0440 txhais tau tias "Evaporative Emission Control System Malfunction".
• Lexus, Toyota: P0440 feem ntau hu ua "Evaporative Emission Control System Malfunction" lossis "Evaporative Emission Control System Malfunction Gross Leak Detected."
• Ford, Lincoln, Mercury: Cov cai no feem ntau txhais tau tias "Evaporative Emission Control System Malfunction" lossis "Evaporative Emission Control System Loj Leak Detected."
• Honda, Acura: P0440 tuaj yeem txhais tau tias "Evaporative Emission Control System Malfunction".
• Nissan, Infiniti, UA: Rau lub hom phiaj no, P0440 code kuj tseem qhia tau tias "Evaporative Emission Control System Malfunction."

Nrog koj lub tsheb tshwj xeeb tus tswv phau ntawv los yog hu rau lub chaw tsim khoom kom paub meej ntxiv txog P0440 teeb meem code ntawm koj lub tsheb.