Yuav ua li cas hloov cov pa roj recirculation (EGR) valve

Koj lub tsheb tuaj yeem tso saib lub teeb pom kev teeb pom kev zoo, tuaj yeem ua haujlwm tsis zoo, lossis yuav tsis dhau qhov kev ntsuas hluav taws xob hauv zos. Cov no tuaj yeem yog qee cov tsos mob ntawm EGR ua tsis tiav (kua pa rov ua haujlwm) valve. EGR tsis tsuas yog cuam tshuam ncaj qha rau koj lub tsheb cov pa tawm, tab sis nws kuj tuaj yeem ua rau muaj teeb meem loj dua rau koj lub tsheb. Paub tias EGR valve ua li cas thiab kuaj xyuas nws li cas tuaj yeem pab koj txuag nyiaj los ntawm kev kho koj tus kheej, lossis tsawg kawg pab koj los ua tus neeg siv khoom paub.

Ntu 1 ntawm 3: Nkag siab lub hom phiaj ntawm EGR valve thiab nws ua haujlwm li cas

Lub EGR valve lossis EGR valve yog ib feem ntawm koj lub tsheb lub qhov tso pa tawm. Nws lub hom phiaj tseem ceeb yog txo qis NOX (oxide ntawm nitrogen) emissions koj lub cav emissions. Qhov no yog ua tiav los ntawm recirculating cov pa roj rov qab mus rau lub cav, uas stabilizes qhov kub thiab txias ntawm lub combustion chamber, thiab kuj tso cai rau cov txheej txheem combustion pib dua nyob rau hauv lub tso pa recirculation, uas yuav txo tau tus nqi ntawm unburned roj nyob rau hauv nws.

Muaj ob hom EGR li qub, hluav taws xob thiab phau ntawv. Lub tshuab hluav taws xob muaj cov solenoid uas tso cai rau lub computer qhib thiab kaw thaum xav tau. Phau ntawv version qhib thaum lub tshuab nqus tsev siv rau nws, ces kaw thaum nws tso lub tshuab nqus tsev. Txawm hais tias koj muaj qhov twg, kev ua haujlwm ntawm qhov system yog tib yam. Lub tsheb lub computer yuav tswj qhov qhib thiab kaw ntawm EGR valve raws li lub tsheb ceev thiab lub cav kub.

Ntawm cov tsheb feem ntau, EGR valve tsuas yog siv tau thaum lub tshuab ua kom sov kom sov li qub thiab lub tsheb khiav ntawm txoj kev loj. Thaum lub kaw lus tsis ua haujlwm zoo, nws tuaj yeem ua rau qee yam yooj yim raws li Lub Teeb Tshawb Xyuas Lub Cav tuaj, mus rau qee yam hnyav li nres lub cav.

Ntu 2 ntawm 3: Kev kuaj xyuas qhov tsis raug EGR Valve

EGR valve tuaj yeem ua tsis tiav rau ntau yam laj thawj. Thaum qhov no tshwm sim, nws tuaj yeem ua rau muaj ntau yam tsos mob. Thaum EGR valve tsis ua haujlwm, nws feem ntau ua tsis tiav hauv ib qho ntawm ob txoj hauv kev: nws tau daig qhib lossis nws tau daig kaw. Cov tsos mob no tuaj yeem zoo ib yam li lwm yam teeb meem hauv tsheb, yog li kev kuaj mob kom zoo yog qhov tseem ceeb.

Xyuas seb lub cav lub teeb yog nyob rauA: Thaum EGR valve tsis ua haujlwm, nws tuaj yeem ua rau lub teeb pom kev ntawm Lub Cav. Yog tias lub teeb qhib, lub computer yuav tsum tau luam theej duab rau cov lej. Yog tias muaj EGR qis qis, nws txhais tau tias EGR valve tsis qhib.

Lub khoos phis tawj tuaj yeem qhia tau yog tias EGR valve qhib los ntawm cov kev hloov pauv uas nws pom hauv cov pa oxygen sensors thaum lub valve qhib. Koj kuj tuaj yeem tau txais qhov tsis raug voltage code rau EGR valve, uas yuav qhia tau tias muaj teeb meem hauv Circuit Court lossis valve tsis ua haujlwm. Ib tug lean sib tov code kuj yuav tshwm sim yog hais tias lub EGR valve yog daig qhib. Yog tias EGR valve tau daig qhib, huab cua tsis siv yuav nkag mus rau hauv lub cav, ua rau lub computer pom huab cua ntau dhau hauv lub cav.

Rough tsis ua haujlwm: Yog tias EGR valve daig hauv qhov chaw qhib, nws yuav ua rau lub tshuab nqus tsev vacuum. Qhov no yuav ua rau lub cav idling intermittently vim hais tias lub computer yuav tsis muaj peev xwm kom raug ntes cua tshaj.

Yog tias ib qho ntawm cov tsos mob tshwm sim, lub valve yuav tsum tau kuaj xyuas. Nyob ntawm seb hom tsheb, nws yuav txiav txim siab seb nws yuav raug kuaj li cas.

EGR ploj/Flow Code: Qhov no txhais tau hais tias tsis muaj cov pa roj txaus nkag mus rau hauv lub cav thaum lub EGR valve qhib. Qhov no yuav yog vim muaj ntau yam. Lub peev xwm los kuaj xyuas lawv txhua tus yuav pab koj nrhiav qhov teeb meem.

• Electronic EGR valve: EGR valve tej zaum yuav muaj teeb meem lossis muaj kev tswj xyuas tsis zoo. Txoj hauv kev zoo tshaj plaws los kuaj xyuas qhov no yog nrog lub scanner ua ntej. Nrog lub cav khiav, EGR valve tuaj yeem qhib thiab kaw, thiab koj tuaj yeem saib xyuas nws txoj haujlwm raug. Yog tias nws tsis ua haujlwm, ces koj yuav tsum tau kuaj xyuas EGR valve nrog ohmmeter. Yog tias lub valve tau txais txiaj ntsig tsis zoo, nws yuav tsum tau hloov. Yog hais tias txhua yam nyob rau hauv kev txiav txim, lub Circuit Court yuav tsum tau soj ntsuam nrog ib tug voltmeter.

• Phau ntawv EGR valve: Phau ntawv EGR valve los yog nws cov tswj solenoid lossis Circuit Court tsis ua hauj lwm tej zaum yuav muaj. Lub EGR valve tuaj yeem kuaj nrog lub tshuab nqus tsev kom pom tias nws daig hauv qhov chaw kaw. Nrog lub cav khiav, koj tuaj yeem siv lub tshuab nqus tsev twj siv lub tshuab nqus tsev rau EGR valve. Yog tias lub cav tsis ua haujlwm hloov thaum lub tshuab nqus tsev siv, lub valve zoo. Yog tsis yog, ces nws yuav tsum tau hloov. Yog tias EGR valve yog OK, xyuas nws cov tswj Circuit Court thiab solenoid.

• Clogged EGR channels: EGR valve kuj yuav ua tau zoo thaum koj tau txais qhov teeb meem ntws. Cov kab EGR uas txuas cov pa tawm mus rau qhov nqus tau feem ntau txhaws nrog carbon buildup. Feem ntau cov EGR valve tuaj yeem raug tshem tawm thiab cov nqe lus tau kuaj xyuas cov nyiaj tso cia. Yog hais tias muaj tsub zuj zuj, ces nws yuav tsum xub muab tshem tawm thiab rov kuaj lub tsheb.

Yog hais tias qhov teeb meem ntawm lub tsheb yog vim lub lean code los yog ib qho teeb meem nyob twj ywm, qhov no qhia tau hais tias lub valve tsis kaw. Lub valve yuav tsum tau muab tshem tawm thiab cov khoom siv sab hauv tuaj yeem kuaj xyuas seb lawv txav mus li cas. Yog tsis yog, ces nws yuav tsum tau hloov.

Ntu 3 ntawm 3: EGR valve hloov

Thaum pom tias lub valve puas lawm, nws yuav tsum tau hloov.

Cov ntaub ntawv xav tau

• EGR lub valve
• Ratchet nrog sockets
• Wrench (adjustable)

Kauj Ruam 1: Nres koj lub tsheb rau ntawm qhov chaw.. Chaw nres tsheb rau ntawm qhov chaw thiab siv qhov chaw nres tsheb nres. Cia lub cav txias.

Kauj Ruam 2: Nrhiav EGR valve. Lub EGR valve feem ntau yog nyob rau ntawm cov khoom noj khoom haus. Ib daim ntawv nplaum emissions hauv qab lub hood tuaj yeem pab koj nrhiav tau lub valve.

Kauj Ruam 3: Loosen lub tso pa tawm. Siv tus ciaj ntswj kom xoob cov yeeb nkab uas txuas nrog EGR valve.

Kauj Ruam 4: Tshem cov bolts. Siv lub ratchet thiab lub qhov (socket) tsim nyog, tshem tawm cov bolts tuav lub valve mus rau hauv qhov khoom noj thiab tshem tawm lub valve.

Kauj Ruam 5: Nruab lub valve tshiab. Nruab lub valve tshiab nyob rau hauv qhov kev txiav txim rov qab thiab ceev nws mounting bolts rau cov chaw tsim tshuaj paus specifications.

Tom qab txhim kho EGR valve tshiab, nws tuaj yeem kuaj xyuas dua. Yog tias kuaj xyuas thiab hloov EGR valve zoo li nyuaj rau koj, koj yuav tsum nrhiav kev pab los ntawm tus kws kho tsheb uas muaj ntawv pov thawj uas tuaj yeem hloov EGR valve rau koj.