P0479 Exhaust gas siab tswj valve Circuit Court intermittent

P0479 – OBD-II Teeb meem Code Technical Description

Teeb meem code P0479 qhia tias PCM tau kuaj pom qhov tsis sib xws ntawm qhov hluav taws xob tso pa hluav taws xob tswj valve Circuit Court.

Qhov txhaum cai txhais li cas P0479?

Teeb meem code P0479 qhia txog qhov tsis sib xws ntawm qhov hluav taws xob hauv cov pa hluav taws xob tswj valve Circuit Court. Cov cai no feem ntau tshwm sim ntawm cov tsheb uas muaj diesel thiab turbocharged xyaw uas muaj cov pa roj cua siab saib xyuas. Nyob rau hauv cov tsheb nrog diesel los yog turbocharged cav, lub tso pa roj siab tswj valve yog lub luag hauj lwm rau kev tswj cov pa tso pa siab. Lub PCM cia li xam qhov yuav tsum tau tso pa roj siab raws li cov ntaub ntawv tau txais los ntawm lub throttle txoj hauj lwm sensor, tachometer thiab lwm yam sensors nyob rau hauv daim ntawv ntawm voltage nyeem ntawv. Yog tias PCM pom tias cov pa hluav taws xob tswj lub valve Circuit Court voltage tsis sib xws, P0479 yuav tshwm sim.

Tej zaum ua rau

Qee qhov laj thawj rau P0479 teeb meem code:

• Malfunctioning Exhaust Gas Pressure Control Valve: Lub valve tej zaum yuav puas los yog faulty, ua rau cov pa roj siab tsis kho kom zoo.
• Cov teeb meem hauv Circuit Court: qhib, corrosion, lossis lwm yam kev puas tsuaj hauv hluav taws xob txuas txuas cov pa roj siab tswj valve rau lub cav tswj module (PCM) tuaj yeem ua rau kev nyeem ntawv tsis raug lossis tsis muaj teeb liab ntawm lub valve.
• Cov Teeb Meem Sensor: Kev ua haujlwm tsis zoo ntawm lub tshuab nqus tsev sensor, tachometer, lossis lwm yam sensors uas PCM siv los ntsuas qhov xav tau tso pa tawm tuaj yeem ua rau P0479.
• PCM Software Teeb meem: Tsis raug lossis ua haujlwm tsis zoo PCM software tuaj yeem ua rau cov pa hluav taws xob tswj valve ua haujlwm tsis zoo.

Cov tsos mob ntawm tus lej yuam kev yog dab tsi? P0479?

Cov tsos mob rau DTC P0479 yuav txawv nyob ntawm seb qhov ua rau thiab hom tsheb:

• Lub Check Engine yuam kev code tshwm rau ntawm lub tsheb dashboard.
• Kev poob ntawm lub cav fais fab lossis kev ua haujlwm tsis ruaj khov.
• Deteriorating roj kev lag luam.
• Teeb meem nrog acceleration los yog qeeb teb rau cov roj pedal.
• Cov suab tsis zoo los yog kev vibrations ntawm lub cav.
• Kev siv roj ntau ntxiv.
• Cov ntxhiab tsw txawv txav los ntawm qhov tso pa tawm.

Yuav ua li cas kuaj tau tus lej txhaum P0479?

Txhawm rau kuaj xyuas DTC P0479, cov kauj ruam hauv qab no raug pom zoo:

1. Xyuas qhov yuam kev code: Siv lub tshuab kuaj kab mob txhawm rau nyeem P0479 code thiab lwm yam teeb meem ntxiv uas yuav tshwm sim. Sau cov lej yuam kev rau kev txheeb xyuas ntxiv.
2. Kev kuaj pom pom: Tshawb xyuas cov pa hluav taws xob tswj lub valve thiab txhua qhov kev sib txuas hluav taws xob kom pom kev puas tsuaj, corrosion, lossis tawg thaiv. Xyuas kom txhua qhov kev sib txuas ruaj ntseg.
3. Tshawb xyuas kev sib txuas hluav taws xob: Tshawb xyuas cov kev sib txuas hluav taws xob ntawm cov pa roj cua siab tswj valve kom muaj kev sib txuas zoo thiab corrosion. Yog tias tsim nyog, ntxuav cov kev sib txuas thiab rov txuas cov xov hlau.
4. Kev ntsuas siab tswj valve: Siv lub multimeter los xyuas qhov tsis kam thiab qhov hluav taws xob ntawm qhov tso pa roj siab tswj valve. Xyuas kom tseeb tias qhov kev tiv thaiv ua tau raws li cov neeg tsim khoom specifications.
5. Txheeb xyuas qhov throttle txoj hauj lwm sensor: Txheeb xyuas qhov ntsuas qhov ntsuas qhov ntsuas kom ua haujlwm kom raug raws li nws yuav ua rau muaj hluav taws xob siab lossis tsis tshua muaj hluav taws xob hauv cov pa hluav taws xob tswj valve Circuit Court.
6. Kev sim ntxiv: Nyob ntawm koj qhov xwm txheej tshwj xeeb, kev sim ntxiv ntawm kev tswj hwm lub cav thiab lwm yam khoom siv hluav taws xob yuav xav tau.
7. Txheeb xyuas cov khoom siv kho tshuab: Yog tias tsim nyog, xyuas qhov xwm txheej ntawm cov khoom siv hluav taws xob ntawm cov pa tawm, xws li cov pa hluav taws xob, cov pa hluav taws xob rov ua haujlwm thiab turbocharging.

Tom qab kuaj xyuas thiab txheeb xyuas qhov teeb meem, nws yog ib qho tsim nyog yuav tsum ua raws li qhov tsim nyog kho lossis hloov cov khoom tsis raug.

Kev kuaj mob yuam kev

Thaum kuaj pom DTC P0479, cov teeb meem hauv qab no yuav tshwm sim:

• Hla qhov kev tshuaj ntsuam xyuas: Kev ua yuam kev tuaj yeem tshwm sim yog tias ua tib zoo saib xyuas ntawm cov pa hluav taws xob tswj valve thiab nws cov kev sib txuas hluav taws xob tsis ua tiav. Kev hla cov kauj ruam no yuav ua rau muaj kev puas tsuaj los yog kev puas tsuaj.
• Kev ntsuam xyuas tsis raug: Qhov yuam kev tshwm sim thaum kev sim ua tiav nrog cov cuab yeej lossis cov txheej txheem tsis raug. Kev siv lub tshuab multimeter tsis raug lossis tsis nkag siab qhov system kom raug tuaj yeem ua rau cov lus xaus tsis raug.
• Kev kuaj xyuas tsis txaus ntawm qhov ntsuas qhov ntsuas qhov ntsuas: Yog hais tias lub throttle txoj hauj lwm sensor tsis tau kuaj txaus, nws yuav ua rau muaj teeb meem nyob rau hauv lub undiagnosed voltage nyob rau hauv lub tso pa roj siab tswj valve Circuit Court.
• Hla kev xeem ntxiv: Qee qhov teeb meem, xws li teeb meem ntawm lub cav tswj lub cev lossis kev puas tsuaj rau lub tshuab hluav taws xob, tej zaum yuav ploj mus thaum kuaj pom yog tias tsis tau ua tiav cov kev sim thiab tshuaj xyuas ntxiv.
• Misinterpretation ntawm cov ntaub ntawv: Qhov yuam kev tshwm sim thaum kuaj cov txiaj ntsig raug txhais tsis raug lossis tsis quav ntsej. Kev tsis txaus siab rau kev nthuav dav lossis kev txhais tsis raug ntawm cov ntaub ntawv tuaj yeem ua rau cov lus txiav txim tsis raug txog qhov ua rau ua haujlwm tsis zoo.

Rau kev kuaj mob kom zoo, koj yuav tsum ua tib zoo saib xyuas txhua theem ntawm cov txheej txheem, siv cov txheej txheem thiab cov cuab yeej raug, thiab ua txhua yam kev ntsuam xyuas tsim nyog thiab kev kuaj xyuas kom paub qhov tseeb ntawm qhov teeb meem.

Txoj cai txhaum loj npaum li cas? P0479?

Teeb meem code P0479 qhia txog qhov teeb meem nrog cov pa roj siab tswj valve, uas tuaj yeem cuam tshuam tsis zoo rau lub cav ua haujlwm. Txawm hais tias qhov no tsis yog qhov txhaum loj, nws tseem yuav tsum tau ua tib zoo saib xyuas thiab kho tam sim ntawd.

Yog tias cov pa hluav taws xob tswj lub valve tsis ua haujlwm zoo, nws tuaj yeem ua rau EGR system ua haujlwm tsis zoo thiab thaum kawg ua rau lub tsheb ua haujlwm ib puag ncig. Tsis tas li ntawd, nws tuaj yeem ua rau txo qis kev ua haujlwm ntawm lub cav thiab kev siv roj ntau ntxiv.

Txawm hais tias P0479 tsis yog qhov xwm txheej ceev, nws raug pom zoo kom kho sai li sai tau kom tsis txhob muaj teeb meem ntxiv thiab tswj xyuas lub tsheb kom zoo.

Kev kho dab tsi yuav daws tau tus lej P0479?

Txhawm rau daws DTC P0479, ua cov kauj ruam kho hauv qab no:

1. Txheeb xyuas qhov hluav taws xob Circuit Court: Ua ntej, koj yuav tsum xyuas cov hluav taws xob hluav taws xob txuas cov pa roj siab tswj valve rau lub cav tswj module (PCM). Tshawb xyuas qhov ncaj ncees ntawm cov xov hlau, kev sib cuag thiab cov khoom sib txuas rau corrosion, puas lossis tawg.
2. Xyuas lub siab tswj valve: Tom ntej no, koj yuav tsum xyuas cov pa roj siab tswj valve nws tus kheej kom ua haujlwm raug. Yog tias tsim nyog, lub valve yuav tsum tau hloov.
3. Diagnostics siv lub scanner: Kev siv lub tshuab kuaj kab mob yuav tso cai rau koj los txheeb xyuas qhov kev ua haujlwm ntawm lub valve thiab kuaj xyuas qhov tsis ua haujlwm lossis ua haujlwm tsis zoo hauv nws txoj haujlwm. Qhov no yuav tso cai rau koj los txiav txim ntau qhov laj thawj ntawm P0479 code.
4. Hloov lub siab sensor: Qee qhov xwm txheej, qhov ua rau qhov ua yuam kev tuaj yeem yog qhov ua haujlwm tsis zoo ntawm cov pa roj cua siab sensor. Yog tias qhov no tau lees paub thaum lub sijhawm kuaj mob, lub sensor no yuav tsum tau hloov.
5. PCM firmware: Qee zaum, kev hloov kho lub cav tswj module (PCM) software tuaj yeem pab daws qhov teeb meem ntawm P0479 code.
6. Tshawb xyuas lub tshuab nqus tsev vacuum thiab hoses: Txheeb xyuas qhov xwm txheej ntawm lub tshuab nqus tsev vacuum thiab hoses txuas cov pa roj siab tswj valve rau lwm cov khoom siv. Xyuas kom lawv muaj kev ncaj ncees thiab tsis muaj qhov xau.

Nws raug nquahu kom koj ua cov kauj ruam no raws li kev taw qhia ntawm tus kws kho tsheb uas muaj kev paub dhau los lossis tus kws kho tsheb pib, tshwj xeeb tshaj yog tias koj tsis muaj kev paub ntau hauv kev kho tsheb lossis ua haujlwm nrog cov tshuab hluav taws xob.

P0479 Exhaust Pressure Control Valve "A" Intermittent 🟢 Teeb meem Code Cov tsos mob ua rau kev daws teeb meem

P0479 - Cov ntaub ntawv tshwj xeeb ntawm hom

Teeb meem code P0479 muaj feem xyuam rau cov pa roj cua siab tswj qhov system thiab tuaj yeem ua rau ntau hom tsheb sib txawv, ntau hom tsheb nrog cov lej rau P0479:

1. Ford, Lincoln, Mercury: Cov teeb liab sib cuam tshuam los ntawm cov pa tso pa tawm lub siab sensor.
2. Chevrolet, GMC, Cadillac, Buick: Intermittent voltage nyob rau hauv lub tso pa roj siab tswj valve Circuit Court.
3. Dodge, Jeep, Chrysler: Cov teeb liab sib cuam tshuam los ntawm cov pa roj siab tswj valve.
4. Lexus, Toyota: Exhaust gas recirculation (EGR) valve signal intermittent.
5. Volkswagen, Audi, Porsche: Exhaust gas recirculation (EGR) valve signal intermittent.
6. BMW, Mercedes-Benz, Audi: Intermittent voltage in the Exhaust Gas Recirculation (EGR) valve circuit.

Thov nco ntsoov tias qhov tshwj xeeb ntawm cov lej txhaum yuav txawv me ntsis nyob ntawm tus qauv, xyoo thiab kev ua lag luam, yog li nws yog ib txwm pom zoo kom kuaj xyuas cov ntaub ntawv tshwj xeeb thiab kho phau ntawv qhia rau koj lub tsheb tshwj xeeb.