P0159 OBD-II Teeb meem Code: Oxygen Sensor (Bank 2, Sensor 2)

P0159 - kev piav qhia

Oxygen (O2) sensor teb (bank 2, sensor 2)

DTC P0159 txhais li cas?

Code P0159 yog ib tug kis tau tus mob code uas qhia txog ib tug teeb meem nrog ib tug tshwj xeeb sensor nyob rau hauv lub tso pa system (bank 2, sensor 2). Yog tias lub ntsuas pa oxygen qeeb, nws yuav yog ib qho qhia tias nws ua txhaum. Qhov tshwj xeeb sensor no yog lub luag haujlwm rau kev saib xyuas catalyst efficiency thiab emissions.

No Diagnostic Trouble Code (DTC) yog generic rau kev sib kis thiab siv rau tsheb nrog OBD-II system. Txawm hais tias qhov xwm txheej ntawm txoj cai, qhov tshwj xeeb ntawm kev kho yuav txawv nyob ntawm qhov tsim thiab qauv ntawm lub tsheb. Peb tab tom tham txog lub tsheb oxygen sensor ntawm sab xis neeg caij tsheb. "Bank 2" yog hais txog sab ntawm lub cav uas tsis muaj lub tog raj kheej # 1. "Sensor 2" yog qhov thib ob sensor tom qab tawm hauv lub cav. Cov cai no qhia tau hais tias lub cav tsis tswj cov huab cua / roj sib tov raws li xav tau los ntawm ECM lossis cov pa oxygen sensor. Qhov no tuaj yeem tshwm sim ob qho tib si thaum lub cav ua kom sov thiab thaum lub sijhawm ua haujlwm li qub.

Dab tsi yog cov tsos mob ntawm teeb meem code P0159

Tej zaum koj yuav tsis pom muaj teeb meem nrog koj lub tsheb tuav, txawm tias qee cov tsos mob tshwm sim.

Check Engine Light: Lub teeb no lub luag haujlwm tseem ceeb yog ntsuas emissions thiab tsis muaj kev cuam tshuam loj rau kev ua haujlwm ntawm lub tsheb.

Qhov no sensor yog downstream oxygen sensor, txhais tau tias nws nyob tom qab lub catalytic converter. Lub khoos phis tawj siv cov pa oxygen qis dua los ntsuas qhov kev ua tau zoo ntawm cov catalyst thiab cov sensors sab saud los xam cov roj-cua sib tov.

Ua rau Code P0159

Tus lej P0159 yuav qhia ib lossis ntau qhov hauv qab no:

1. Cov pa oxygen sensor yog faulty.
2. Kev puas tsuaj los yog chafing ntawm lub sensor thaiv.
3. Muaj cov pa tawm pa tawm.

Cov cai no teev yog tias cov pa oxygen sensor hloov maj mam. Nws yuav tsum oscillate ntawm 800 mV thiab 250 mV rau 16 cycles tshaj 20 vib nas this. Yog tias lub sensor tsis ua raws li tus qauv no, nws raug suav hais tias yog qhov tsis raug. Qhov no feem ntau yog vim muaj hnub nyoog los yog paug ntawm lub sensor.

Cov pa paug tuaj yeem ua rau cov cai no. Txawm hais tias muaj kev ntseeg nrov, qhov tso pa tawm nqus cov pa oxygen thiab dilutes cov pa ntws tawm, uas tuaj yeem txhais tau los ntawm lub khoos phis tawj ua lub ntsuas pa tsis raug.

Lub sensor muaj plaub xaim thiab ob lub voj voog. Yog tias ib qho ntawm cov circuits luv luv lossis muaj kev tiv thaiv siab, nws kuj yuav ua rau cov cai no los teeb tsa vim tias cov xwm txheej no tuaj yeem cuam tshuam rau kev ua haujlwm ntawm oxygen sensor.

Yuav kuaj li cas P0159?

Technical Service Bulletins (TSBs) tsim nyog kuaj xyuas cov teeb meem tshwj xeeb ntsig txog kev tsim thiab qauv xyoo ntawm koj lub tsheb.

Cov cai no tau teeb tsa los ntawm lub computer tom qab khiav qee qhov kev sim tshwj xeeb. Yog li ntawd, tus kws tshaj lij uas tau kuaj xyuas lub tsheb thiab pom cov cai no feem ntau yuav kuaj xyuas cov pa tawm ua ntej hloov lub sensor (Bank 2, Sensor 2).

Yog xav tau kev ntsuam xyuas ntxaws ntxiv, muaj ntau txoj hauv kev los ua nws. Tus kws tshaj lij tuaj yeem nkag mus ncaj qha rau cov pa oxygen sensor Circuit Court thiab saib xyuas nws txoj haujlwm siv oscilloscope. Qhov no feem ntau yog ua thaum qhia txog propane rau hauv kev noj haus lossis tsim lub tshuab nqus tsev vacuum los saib xyuas cov pa oxygen sensor cov lus teb rau cov kev hloov pauv. Cov kev sim no feem ntau ua ke nrog kev sim tsav.

Kev ntsuas kev tiv thaiv tuaj yeem ua tau los ntawm kev txiav cov pa oxygen sensor txuas ntawm lub tsheb thaiv. Qhov no yog qee zaum ua los ntawm cua sov lub sensor los simulate cov xwm txheej uas nws yuav ntsib thaum ntsia hauv qhov tso pa tawm.

Kev kuaj mob yuam kev

Kev tsis pom lwm yam teeb meem xws li tso pa tawm, lub tshuab nqus tsev vacuum lossis hluav taws xob tsis zoo yog qhov tsis tshua muaj. Qee zaum lwm yam teeb meem yuav mus tsis tau pom thiab tuaj yeem plam tau yooj yim.

Downstream oxygen sensors (cov pa oxygen sensors tom qab lub catalytic converter) yog tsim los pab kom koj lub tsheb ua tau raws li EPA cov qauv tso pa tawm. Cov pa oxygen sensor no tsis tsuas yog saib xyuas kev ua haujlwm ntawm cov catalyst, tab sis kuj ua cov kev ntsuam xyuas los xyuas nws tus kheej ua haujlwm.

Qhov nruj ntawm cov kev ntsuam xyuas no xav kom tag nrho lwm cov tshuab ua haujlwm kom raug lossis cov txiaj ntsig yuav tsis raug. Yog li ntawd, tshem tawm feem ntau lwm cov lej thiab cov tsos mob yuav tsum tau txiav txim siab ua ntej.

Qhov teeb meem loj npaum li cas P0159?

Txoj cai no muaj kev cuam tshuam me ntsis rau kev tsav tsheb txhua hnub. Qhov no tsis yog ib qho teeb meem uas yuav tsum tau hu rau lub tsheb thauj khoom.

Kev taw qhia ntawm cov tshuab no tau tshwm sim los ntawm qhov teeb meem loj ntawm lub ntiaj teb sov sov thiab tau ua los ntawm Lub Chaw Tiv Thaiv Ib puag ncig nrog rau kev lag luam tsheb.

Kev kho dab tsi yuav kho qhov teeb meem P0159?

Cov kauj ruam yooj yim tshaj plaws yog rov pib dua tus lej thiab xyuas seb nws puas rov qab los.

Yog tias tus lej rov qab, qhov teeb meem yuav tshwm sim nrog cov neeg caij tsheb sab nraub qaum oxygen sensor. Tej zaum koj yuav tau hloov nws, tab sis kuj xav txog cov kev daws teeb meem hauv qab no:

1. Tshawb xyuas thiab kho tej qhov tso pa tawm.
2. Tshawb xyuas cov xaim rau cov teeb meem (short circuits, frayed wires).
3. Xyuas qhov zaus thiab amplitude ntawm oxygen sensor teeb liab (yeem).
4. Txheeb xyuas qhov xwm txheej ntawm lub ntsuas pa oxygen; yog tias nws hnav lossis qias neeg, hloov nws.
5. Tshawb xyuas cov pa tawm ntawm qhov nqus.
6. Txheeb xyuas qhov ua tau zoo ntawm huab cua ntws sensor.

Qhov kev daws teeb meem tshaj plaws yuav yog los hloov cov pa oxygen sensor (bank 2, sensor 2).

Kho qhov tso pa tawm ua ntej hloov cov pa oxygen sensor.

Kev puas tsuaj hauv cov pa oxygen sensor Circuit Court tuaj yeem kuaj pom thiab yuav tsum tau kho. Cov xov hlau no feem ntau yog thaiv thiab xav tau kev saib xyuas tshwj xeeb thaum txuas.

Yuav kho P0159 Cav Code li cas hauv 3 feeb [2 Txoj Kev DIY / Tsuas yog $8.34]

Cov lus hais ntxiv txog qhov yuam kev P0159

Lub txhab nyiaj 1 yog txheej ntawm lub tog raj kheej uas muaj lub tog raj kheej thib ib.

Lub txhab nyiaj 2 yog ib pawg ntawm lub tog raj kheej uas tsis suav nrog lub tog raj kheej thib ib.

Sensor 1 yog lub sensor nyob rau pem hauv ntej ntawm lub catalytic converter uas lub computer siv los xam cov roj piv.

Sensor 2 yog lub sensor nyob tom qab lub catalytic converter thiab feem ntau yog siv los saib xyuas cov emissions.

Txhawm rau kom lub tsheb sim ua haujlwm ntawm Sensor 2, cov xwm txheej hauv qab no yuav tsum tau ua. Txoj kev kuaj xyuas qhov yuam kev no yuav txawv ntawm cov tuam ntxhab thiab siv tau raws li hauv qab no:

1. Lub tsheb khiav ceev ntawm 20 thiab 55 mais ib teev.
2. Lub throttle yog qhib rau tsawg kawg yog 120 vib nas this.
3. Ua haujlwm kub tshaj 70 ℃ (158 ℉).
4. Lub catalytic converter kub tshaj 600 ℃ (1112 ℉).
5. Lub emission evaporation system yog muab tua.
6. Cov cai tau teeb tsa yog tias cov pa oxygen sensor hloov pauv tsawg dua 16 zaug los ntawm kev nplua nuj mus rau lean nrog lub sijhawm ntawm 20 vib nas this.

Qhov kev sim no siv ob theem ntawm kev kuaj xyuas qhov txhaum.