P0373 Intermittent/unsteady pulses thaum lub sij hawm siab daws teeb meem "A" teeb liab theem tswj tswj

P0373 – OBD-II Teeb meem Code Technical Description

Teeb meem code P0373 qhia tias PCM tau kuaj pom muaj teeb meem nrog lub tsheb lub sijhawm ua haujlwm siab-kev daws teeb meem "A" teeb liab.

Qhov txhaum cai txhais li cas P0373?

Teeb meem code P0373 qhia txog qhov teeb meem nrog kev daws teeb meem siab siv "A" teeb liab hauv lub tsheb lub sijhawm. Qhov no txhais tau hais tias lub cav tswj module los yog tsis siv neeg kis tau tus mob tswj module tau kuaj pom ib tug deviation los yog instability nyob rau hauv lub engine lub sij hawm teeb liab, uas yog feem ntau siv los synchronize lub cav thiab kis tau tus mob.

Tej zaum ua rau

Qee qhov laj thawj uas tuaj yeem ua rau P0373 code:

• Faulty crankshaft txoj hauj lwm (CKP) sensor: Lub CKP sensor yog lub luag hauj lwm rau kev xa cov crankshaft txoj hauj lwm teeb liab mus rau lub cav tswj system. Yog hais tias lub sensor yog faulty los yog muab lub teeb liab tsis raug, nws tuaj yeem ua rau P0373.
• Teeb meem nrog kev xaim thiab kev sib txuas: Qhib, luv luv, lossis lwm yam teeb meem nrog cov xaim, kev sib txuas, lossis cov khoom sib txuas ntawm CKP sensor thiab lub cav tswj module tuaj yeem ua rau P0373.
• Crankshaft sensor disc: Kev puas tsuaj lossis hnav rau lub crankshaft sensor disc yuav ua rau lub teeb liab tsis tau nyeem kom raug, ua rau P0373.
• Teeb meem nrog lub cav tswj module (ECM) lossis kis tau tus mob tswj module (PCM): Kev ua haujlwm tsis zoo hauv ECM lossis PCM, uas yog lub luag haujlwm rau kev ua cov cim qhia los ntawm CKP sensor thiab synchronizing cov haujlwm ntawm lub cav thiab tsis siv neeg kis, tuaj yeem ua rau P0373 code.
• Teeb meem nrog lub ignition system los yog roj txhaj system: Kev ua haujlwm tsis zoo ntawm lwm cov khoom ntawm lub tshuab hluav taws xob lossis cov roj txhaj tshuaj, xws li ignition coils, spark plugs lossis injectors, tuaj yeem ua rau CKP sensor malfunction thiab ua rau P0373 code.
• Teeb meem nrog lub crankshaft iav los yog hniav: Yog hais tias lub crankshaft iav los yog cov hniav puas lawm los yog hnav, nws yuav cuam tshuam lub teeb liab los ntawm CKP sensor thiab ua rau P0373.

Txhawm rau txiav txim siab qhov ua yuam kev P0373, nws raug nquahu kom ua qhov kev kuaj mob ntxaws ntxaws ntawm lub tsheb uas siv cov cuab yeej kuaj mob lossis hu rau tus kws kho tsheb tus kws tshaj lij.

Cov tsos mob ntawm tus lej yuam kev yog dab tsi? P0373?

Cov tsos mob rau DTC P0373 yuav suav nrog cov hauv qab no:

• Teeb meem nrog pib lub cav: Nyuaj pib lub cav los yog tsis kam pib tag nrho tej zaum yuav yog ib qho ntawm thawj cov cim qhia ntawm ib qho teeb meem nrog lub crankshaft txoj hauj lwm (CKP) teeb liab.
• Rough engine ua haujlwm: Kev soj ntsuam kev ua haujlwm tsis zoo ntawm lub cav, xws li rattling, jerking, lossis ntxhib idling, kuj tseem qhia tau tias muaj teeb meem nrog CKP teeb liab.
• Lub zog tsis muaj zog: Yog tias CKP teeb liab tsis raug, lub cav yuav poob lub zog, ua rau lub tsheb tsis zoo tag nrho.
• Kev siv roj ntau ntxiv: Kev ua haujlwm tsis raug ntawm CKP teeb liab yuav ua rau tsis muaj roj combustion, uas yuav ua rau muaj roj ntau ntxiv.
• Kos qhov taw qhia cav: Lub tshuab kuaj xyuas lub teeb tig rau ntawm koj lub tsheb dashboard yog ib qho ntawm cov tsos mob tshwm sim ntawm P0373 code. Qhov ntsuas no ceeb toom tus neeg tsav tsheb ntawm cov teeb meem tshwm sim nrog lub cav ua haujlwm.

Cov tsos mob no yuav tshwm sim rau qhov sib txawv thiab nyob ntawm qhov teeb meem tshwj xeeb. Yog tias koj ntsib cov tsos mob no, nws raug nquahu kom koj tam sim ntawd hu rau tus kws kho tsheb kws kho mob kom kuaj xyuas thiab kho qhov teeb meem.

Yuav ua li cas kuaj tau tus lej txhaum P0373?

Cov kauj ruam hauv qab no raug pom zoo los kuaj xyuas DTC P0373:

1. Xyuas qhov yuam kev code: Siv OBD-II diagnostic scanner nyeem P0373 yuam kev code los ntawm ECU (engine control module) nco. Qhov no yuav tso cai rau koj los txheeb xyuas qhov ua rau muaj teeb meem.
2. Kev soj ntsuam pom ntawm crankshaft txoj hauj lwm (CKP) sensor: Tshawb xyuas CKP sensor thiab nws cov khoom siv hluav taws xob kom pom kev puas tsuaj, corrosion, lossis tawg thaiv.
3. Tshawb xyuas cov kab hluav taws xob thiab kev sib txuas: Txheeb xyuas cov xaim, kev sib txuas thiab cov khoom sib txuas ntawm CKP sensor thiab ECU rau corrosion, tawg lossis tawg tiv tauj.
4. Txheeb xyuas qhov tsis kam ntawm CKP sensor: Siv lub multimeter, xyuas qhov tsis kam ntawm CKP sensor. Qhov kev tiv thaiv yuav tsum nyob rau hauv cov chaw tsim khoom specifications.
5. Tshawb xyuas CKP sensor teeb liab: Siv lub oscilloscope lossis multimeter nrog graphing muaj nuj nqi, xyuas cov teeb liab tsim los ntawm CKP sensor thaum lub crankshaft tig. Lub teeb liab yuav tsum ruaj khov thiab muaj qhov tseeb.
6. Tshawb xyuas lub crankshaft iav los yog cov hniav: Txheeb xyuas qhov mob ntawm lub crankshaft iav lossis cov hniav kom puas lossis hnav.
7. Kev kuaj ntxiv: Qee zaum, yuav tsum muaj kev ntsuam xyuas ntxiv, xws li kuaj xyuas qhov hluav taws xob thiab teeb liab ntawm CKP sensor xov hlau, thiab xyuas cov hluav taws xob tsis zoo hauv qhov hluav taws xob.

Tom qab kuaj xyuas thiab txiav txim qhov ua rau ntawm P0373 yuam kev, koj tuaj yeem pib kho lossis hloov cov khoom cuam tshuam. Yog tias koj tsis tuaj yeem kuaj xyuas koj tus kheej, nws raug nquahu kom koj hu rau tus kws kho tsheb tsim nyog lossis chaw pabcuam.

Kev kuaj mob yuam kev

Thaum kuaj pom DTC P0373, cov teeb meem hauv qab no yuav tshwm sim:

• Kev txhais tsis tseeb ntawm cov tsos mobNco tseg: Vim tias cov tsos mob cuam tshuam nrog P0373 code tuaj yeem sib txawv thiab tsis meej, qhov teeb meem yuav raug txhais yuam kev. Qhov no yuav ua rau muaj kev kuaj mob tsis raug thiab hloov cov khoom tsis tsim nyog.
• Kev kuaj mob tsis raug ntawm CKP sensor: Yog hais tias lub crankshaft txoj hauj lwm sensor tau kuaj pom tias muaj teeb meem, tab sis qhov teeb meem tiag tiag yog nyob rau hauv cov xaim, connectors, los yog lwm yam system Cheebtsam, lub sensor yuav tsis raug hloov kom raug.
• Hla daim tshev ntawm crankshaft iav los yog hniav: Yog tias koj tsis kuaj xyuas qhov mob ntawm lub crankshaft iav lossis cov hniav, cov teeb meem ntawm cov khoom siv no yuav ploj mus, ua rau qhov yuam kev rov tshwm sim tom qab hloov CKP sensor.
• Teeb meem nrog kev xaim lossis hluav taws xob sib txuas: Qee lub sij hawm qhov teeb meem tuaj yeem yog vim qhov qhib, luv luv lossis kev sib cuag tsis zoo hauv cov xaim lossis cov khoom sib txuas. Kev kuaj tsis tau tiav tuaj yeem ua rau kev txiav txim tsis raug ntawm qhov ua rau thiab, vim li ntawd, kho tsis raug.
• Kev kuaj mob tsis txaus ntawm lub ignition system: Teeb meem code P0373 yuav tsis tsuas yog cuam tshuam nrog CKP sensor, tab sis kuj rau lwm yam ignition system Cheebtsam xws li ignition coils, spark plugs, los yog nyob ntawm tej. Kev tsis kuaj xyuas cov khoom no kom raug yuav ua rau muaj kev daws teeb meem tsis tiav.

Txhawm rau kuaj pom tus lej P0373 kom tiav, koj yuav tsum kuaj xyuas txhua yam ua tau siv cov cuab yeej tsim nyog thiab cov txheej txheem. Yog tias koj tsis paub meej txog koj lub peev xwm lossis kev paub dhau los, nws raug nquahu kom koj hu rau tus kws kho tsheb tshwj xeeb lossis chaw pabcuam.

Txoj cai txhaum loj npaum li cas? P0373?

Teeb meem code P0373 yog qhov teeb meem loj uas tuaj yeem cuam tshuam tsis zoo rau kev ua haujlwm ntawm lub cav thiab kev ua haujlwm ntawm lub tsheb. Ob peb lub laj thawj vim li cas qhov chaws no yuav tsum tau ua tiag tiag:

1. Tej zaum cav pib teeb meem: Teeb meem code P0373 tuaj yeem ua rau muaj teeb meem pib lub cav lossis ua tiav tsis tiav pib. Qhov no tuaj yeem ua rau koj tsis tuaj yeem siv koj lub tsheb thiab tuaj yeem muaj teeb meem tshwj xeeb thaum muaj xwm txheej ceev.
2. Rough engine ua haujlwm: Lub sijhawm ua haujlwm tsis raug cai tuaj yeem ua rau lub cav khiav tsis zoo, ua rau muaj kev ntxhov siab, rattling, jerking thiab lwm yam teeb meem uas tuaj yeem cuam tshuam kev caij tsheb thiab kev nplij siab.
3. Lub zog tsis muaj zog: Lub sij hawm lub cav tsis zoo tuaj yeem ua rau poob ntawm lub zog, uas yuav cuam tshuam rau kev ua haujlwm ntawm lub tsheb. Qhov no tuaj yeem ua rau muaj kev nrawm nrawm thiab tag nrho lub tsheb tsis zoo.
4. Ntxiv roj noj thiab emissions: Lub sij hawm tsis zoo ntawm lub cav tuaj yeem ua rau tsis muaj roj combustion, ua rau muaj roj ntau ntxiv thiab emissions ntau ntxiv.
5. Tej zaum kev puas tsuaj rau lwm yam khoom: Kev ua haujlwm tsis zoo ntawm lub cav thiab lub sijhawm tsis zoo tuaj yeem ua rau muaj kev cuam tshuam tsis zoo rau lwm lub tsheb thiab cov khoom siv, xws li cov roj txhaj tshuaj, lub tshuab hluav taws xob thiab cov catalytic converter.

Xav txog cov ntsiab lus saum toj no, P0373 teeb meem code yuav tsum tau saib xyuas tam sim ntawd thiab daws teeb meem kom muaj kev ruaj ntseg thiab kev nyab xeeb ntawm lub tsheb.

Kev kho dab tsi yuav pab tshem tawm cov cai? P0373?

Txhawm rau daws DTC P0373, cov kauj ruam hauv qab no raug pom zoo:

1. Hloov Crankshaft Position (CKP) Sensor: Yog tias CKP sensor tsis ua haujlwm lossis muab lub teeb liab tsis raug, nws yuav tsum tau hloov nrog ib qho tshiab. Nws yog ib qho tseem ceeb uas yuav tau xaiv cov thawj los yog cov khoom zoo analogues kom ntseeg tau tias kev lag luam txhim khu kev qha.
2. Tshawb xyuas thiab hloov kho ECU software (firmware): Qee zaum P0373 code teeb meem tuaj yeem yog vim qhov yuam kev hauv ECU software. Hauv qhov no, koj yuav tsum kuaj xyuas cov firmware hloov tshiab thiab nruab lawv yog tias ua tau.
3. Tshawb xyuas thiab hloov cov crankshaft iav los yog cov hniav: Kev puas tsuaj los yog hnav rau lub crankshaft iav lossis cov hniav tuaj yeem ua rau kev nyeem ntawv tsis raug. Hauv qhov no, nws yog ib qho tsim nyog los hloov cov khoom puas.
4. Kev tshuaj xyuas thiab kho cov kab hluav taws xob thiab kev sib txuas hluav taws xob: Cov hlua hluav taws xob, cov khoom sib txuas thiab cov hluav taws xob sib txuas ntawm CKP sensor thiab ECU yuav tsum tau kuaj xyuas corrosion, tawg lossis lwm yam kev puas tsuaj. Yog tias tsim nyog, lawv yuav tsum tau hloov lossis kho.
5. Tshawb xyuas thiab hloov kho PCM software (firmware): Yog tias koj lub tsheb tau nruab nrog PCM, koj yuav tsum xyuas nws cov software thiab hloov kho nws yog tias tsim nyog.
6. Tshawb xyuas thiab kev pab cuam lub ignition thiab roj txhaj system: Kev ua haujlwm tsis raug ntawm lub ignition lossis roj txhaj tshuaj kuj tuaj yeem ua rau P0373. Txheeb xyuas qhov xwm txheej ntawm lub tshuab hluav taws xob hluav taws xob, lub tshuab hluav taws xob, cov twj tso kua mis thiab lwm cov khoom siv hauv lub cev thiab ua tiav qhov tsim nyog kho.

Tom qab kev kho tiav lawm, lub kaw lus yuav tsum tau kuaj xyuas kom ntseeg tau tias P0373 code tsis tshwm sim ntxiv lawm thiab lub cav ua haujlwm kom raug. Yog tias koj tsis muaj kev txawj ntse lossis kev paub dhau los los kho koj tus kheej, nws raug nquahu kom koj hu rau tus kws kho tsheb tsim nyog lossis chaw pabcuam.

Yuav kuaj thiab kho li cas P0373 Cav Code - OBD II Trouble Code piav qhia

P0373 - Cov ntaub ntawv tshwj xeeb ntawm hom

Teeb meem code P0373 yog tus lej teeb meem thoob ntiaj teb uas tuaj yeem pom ntawm ntau lub tsheb. Nws qhia tau hais tias muaj teeb meem nrog kev daws teeb meem siab "A" teeb liab hauv lub cav lub sijhawm. Nov yog qee qhov kev txiav txim siab rau hom tsheb sib txawv:

• BMW - Teeb meem nrog lub crankshaft txoj hauj lwm (CKP) sensor teeb liab.
• Ford - Deviation nyob rau hauv lub cav synchronization teeb liab.
• Toyota - Cov teeb liab tsis raug los ntawm crankshaft txoj hauj lwm sensor.
• Chevrolet - Teeb meem nrog lub sijhawm ntawm lub cav.
• Hasdas - Tsis txaus crankshaft siv sensor teeb liab.
• Volkswagen (VW) TSI - Teeb meem nrog kev daws teeb meem siab siv lub teeb liab.

Nov yog qee qhov piv txwv xwb. Kev txhais cov lej yuam kev yuav txawv me ntsis nyob ntawm tus qauv tshwj xeeb thiab xyoo ntawm kev tsim lub tsheb. Nws raug nquahu kom koj sab laj nrog koj lub tsheb tshwj xeeb tus tswv phau ntawv lossis chaw pabcuam kom paub meej ntxiv txog cov lej txhaum thiab lawv lub ntsiab lus rau koj lub tsheb.