P0308 Misfire hauv lub tog raj kheej 8

P0308 – OBD-II Teeb meem Code Technical Description

Teeb meem code P0308 qhia tias lub tsheb PCM tau kuaj pom qhov tsis zoo hauv lub tog raj kheej 8.

Qhov txhaum cai txhais li cas P0308?

Teeb meem code P0308 qhia tau hais tias ib tug misfire tau kuaj nyob rau hauv lub yim lub tog raj kheej ntawm lub cav. Qhov no txhais tau hais tias thaum lub cav ua haujlwm teeb meem tshwm sim nrog qhov tseeb ignition ntawm cov roj sib tov hauv ib lub tog raj kheej muab.

Tej zaum ua rau

Qee qhov ua tau rau P0308 teeb meem code yog:

• Teeb meem teeb meem: Hnav, qias neeg lossis puas lub tog raj kheej 8 lub tog raj kheej tuaj yeem ua rau cov roj sib xyaw ua kom tsis txhob kub hnyiab.
• Ignition coil malfunction: Lub ignition coil lub luag hauj lwm rau lub yim lub tog raj kheej yuav ua rau misfire.
• Teeb meem nrog cov kab hluav taws xob: Kev puas tsuaj lossis tawg ntawm cov xaim hluav taws xob txuas rau lub tshuab hluav taws xob rau lub txim hluav taws xob lossis PCM tuaj yeem ua rau hluav taws xob tsis raug.
• Roj teeb meem: Tsis tshua muaj roj siab los yog lub tog raj kheej 8 injector tsis zoo yuav ua rau cov roj tsis txaus rau kev sib txuas kom zoo.
• Lub sijhawm tsis raug: Txoj haujlwm camshaft tsis raug lossis teeb meem nrog lub sijhawm ua haujlwm tuaj yeem ua rau tsis zoo.
• Teeb meem compression: Tsawg compression siab nyob rau hauv lub tog raj kheej 8 vim hnav pistons, li qub los yog piston rings yuav ua rau misfire.
• Sensor malfunction: Teeb meem nrog cov sensors xws li crankshaft lossis camshaft txoj hauj lwm sensor tuaj yeem ua rau lub sijhawm tsis raug.
• Teeb meem nrog PCM: Kev ua haujlwm tsis zoo nyob rau hauv lub cav tswj module (PCM), uas tswj cov hluav taws xob hluav taws xob, tuaj yeem ua rau muaj kev tsis sib haum xeeb hauv kev tswj hluav taws xob hauv lub tog raj kheej thib yim.

Cov no tsuas yog qee qhov ua tau ntawm P0308 code. Txhawm rau txiav txim siab qhov laj thawj ntawm qhov teeb meem, nws raug nquahu kom ua qhov kev kuaj mob dav dav ntawm lub tsheb.

Cov tsos mob ntawm tus lej yuam kev yog dab tsi? P0308?

Cov tsos mob thaum muaj DTC P0308 tuaj yeem suav nrog cov hauv qab no:

• Lub zog tsis muaj zog: Misfire nyob rau hauv lub tog raj kheej 8 tuaj yeem ua rau txo lub zog ntawm lub cav, tshwj xeeb tshaj yog thaum ua kom nrawm lossis qis dua.
• Tsis ruaj tsis khov: Yog tias muaj hluav taws xob tsis zoo, lub cav yuav ua haujlwm tsis zoo, ua rau muaj kev ua haujlwm tsis zoo thiab txawm tias tshee.
• Kev co: Kev ua haujlwm tsis sib xws ntawm lub cav vim yog qhov tsis zoo tuaj yeem ua rau muaj kev vibrations thaum lub tsheb khiav.
• Kev siv roj ntau ntxiv: Kev sib xyaw tsis raug ntawm cov roj sib tov hauv lub tog raj kheej yim tuaj yeem ua rau muaj roj ntau ntxiv.
• Flashing Check Cav Teeb: Lub Cheeb Tsam Lub Teeb ntawm lub ntsuas hluav taws xob yuav teeb lossis teeb nyem thaum pom P0308.
• Extraneous suab nrov thaum lub cav ua haujlwm: Cov hluav taws kub tsis zoo tuaj yeem nrog lub suab nrov lossis lub suab nrov thaum lub cav khiav.
• Tshem tawm tsw: Cov roj combustion tsis raug yuav ua rau muaj ntxhiab tsw hauv lub tsheb.
• Kev nyuaj pib: Yog tias koj muaj teeb meem ignition, nws yuav nyuaj rau pib lub cav, tshwj xeeb tshaj yog thaum huab cua txias.

Cov tsos mob no tuaj yeem tshwm sim hauv qhov sib txawv ntawm kev sib txuas thiab qib ntawm qhov hnyav nyob ntawm seb cov xwm txheej tshwj xeeb thiab ua rau muaj teeb meem.

Yuav ua li cas kuaj tau tus lej txhaum P0308?

Txhawm rau kuaj xyuas DTC P0308, cov kauj ruam hauv qab no raug pom zoo:

1. Kev txheeb xyuas cov lej yuam kev: Siv lub tshuab kuaj kab mob los nyeem cov lej yuam kev hauv kev tswj hwm lub cav. Xyuas kom tseeb tias P0308 code tam sim no.
2. Tshawb xyuas lub txim taws: Txheeb xyuas qhov xwm txheej ntawm lub txim hluav taws xob ntawm lub tog raj kheej thib yim. Xyuas kom tseeb tias lawv tsis hnav los yog qias neeg thiab raug ntsia kom raug.
3. Txheeb xyuas qhov hluav taws kub: Txheeb xyuas lub ignition coil lub luag haujlwm rau lub tog raj kheej yim. Xyuas kom tseeb tias nws ua haujlwm kom raug thiab tsis puas.
4. Tshawb xyuas cov kab hluav taws xob: Txheeb xyuas qhov xwm txheej thiab kev ncaj ncees ntawm cov xov hlau txuas ntawm lub txim hluav taws xob rau lub ignition coil thiab PCM.
5. Xyuas cov roj system: Txheeb xyuas cov roj siab thiab qhov xwm txheej ntawm cov injectors hauv lub tog raj kheej yim. Xyuas kom cov roj system ua haujlwm zoo.
6. Compression check: Siv lub ntsuas compression los xyuas qhov compression hauv lub tog raj kheej yim. Kev nyeem ntawv qis qis yuav qhia tau tias muaj teeb meem ntawm kev siv tshuab.
7. Xyuas cov sensors: Tshawb xyuas lub crankshaft thiab camshaft txoj hauj lwm sensors rau malfunctions. Lawv tuaj yeem cuam tshuam rau lub sijhawm ignition kom raug.
8. Tshawb xyuas PCM: Txheeb xyuas PCM rau kev ua haujlwm tsis zoo lossis software yuam kev. Hloov kho PCM software yog tias tsim nyog.
9. Txheeb xyuas qhov system noj: Txheeb xyuas qhov kev nkag mus rau cov pa tawm los yog qhov thaiv uas tuaj yeem cuam tshuam rau huab cua / roj piv.

Tom qab ua tiav cov kauj ruam no, koj tuaj yeem txheeb xyuas qhov ua rau ntawm P0308 code thiab pib daws teeb meem.

Kev kuaj mob yuam kev

Thaum kuaj pom DTC P0308, cov teeb meem hauv qab no yuav tshwm sim:

• Kev txhais cov ntaub ntawv tsis raug: Kev nkag siab tsis raug ntawm cov ntaub ntawv tau txais los ntawm lub tshuab kuaj kab mob lossis lwm yam khoom siv yuav ua rau cov lus txiav txim tsis raug txog qhov ua rau ntawm qhov teeb meem.
• Hla kev kuaj mob ntawm txhua qhov ua tau: Qee zaum cov kws kho tsheb yuav tsis kuaj xyuas ib lossis ntau qhov chaw muaj peev xwm ntawm qhov teeb meem, uas tuaj yeem ua rau kev kuaj tsis tau.
• Hloov cov khoom tsis muaj kev kuaj mob: Hloov cov khoom siv xws li cov pob hluav taws xob lossis cov hluav taws xob hluav taws xob yam tsis tau kuaj pom thawj zaug tuaj yeem ua rau cov nqi tsis tsim nyog thiab kho qhov teeb meem tsis zoo.
• Tsis txaus compression check: Kev ntsuam xyuas tsis txaus ntawm qib compression nyob rau hauv lub yim lub tog raj kheej tuaj yeem ua rau cov lus xaus tsis raug txog qhov xwm txheej ntawm lub cav.
• Tsis quav ntsej cov tsos mob ntxiv: Qee zaum cov kws kho tsheb yuav tsis quav ntsej txog cov tsos mob ntxiv xws li kev vibrations, cov ntxhiab tsw ntxhiab, lossis kev hloov ntawm lub cav ua haujlwm uas yuav muab cov ntaub ntawv ntxiv txog qhov ua rau muaj teeb meem.
• Kev txhais tsis raug ntawm cov ntaub ntawv sensor: Kev txhais tsis raug ntawm cov ntaub ntawv los ntawm cov sensors xws li crankshaft txoj hauj lwm sensors lossis oxygen sensors tuaj yeem ua rau kev txiav txim siab yuam kev txog qhov ua rau lub cev tsis ua haujlwm.
• Kev paub tsis txaus lossis kev paub: Cov kws kho tsheb tsis muaj kev paub dhau los lossis kev paub txog kev tswj hwm lub cav thiab lawv qhov kev kuaj mob tuaj yeem ua rau muaj qhov tsis raug ntawm kev kuaj mob thiab kho qhov teeb meem.

Nws yog ib qho tseem ceeb kom ua tiav kev kuaj mob, suav nrog txhua yam ua tau thiab cov tsos mob, thiab tseem hu rau cov kws tshaj lij thaum muaj kev tsis ntseeg lossis teeb meem.

Txoj cai txhaum loj npaum li cas? P0308?

Teeb meem code P0308 yuav tsum tau ua tib zoo saib raws li nws qhia txog teeb meem ignition nyob rau hauv lub yim lub tog raj kheej ntawm lub engine. Misfires tuaj yeem ua rau tsis muaj kev sib xyaw ntawm cov roj sib tov lossis nws qhov tsis muaj nyob hauv ib lub tog raj kheej, uas tuaj yeem ua rau muaj teeb meem loj:

• Poob lub zog thiab kev ua haujlwm: Lub cylinder 8 ignition tsis zoo yuav ua rau lub cav tsis muaj zog thiab kev ua haujlwm tsis zoo. Qhov no tuaj yeem cuam tshuam rau lub tsheb tag nrho kev ua haujlwm thaum nrawm thiab tuav cov khoom thauj.
• Kev ua haujlwm tsis ruaj khov ntawm lub cav: Misfire tuaj yeem ua rau lub cav khiav tsis zoo, ua rau muaj kev co thiab kev vibration, tshwj xeeb tshaj yog thaum idling lossis qis ceev.
• Ntxiv roj noj thiab emissions ntawm tej yam teeb meem: Kev sib xyaw tsis tiav ntawm cov roj sib tov tuaj yeem ua rau kom muaj roj noj thiab tso pa tawm, uas cuam tshuam rau kev lag luam roj thiab kev nyab xeeb ntawm lub tsheb.
• Kev puas tsuaj rau catalyst: Kev sib xyaw tsis zoo ntawm cov roj tuaj yeem ua rau cov catalyst puas, uas tshem tawm cov khoom tsis zoo los ntawm cov pa roj. Qhov no yuav ua rau qhov yuav tsum tau hloov cov catalyst, uas yog kev kho kim heev.
• Deterioration ntawm qhov dav dav ntawm lub cav: Yog hais tias muaj teeb meem ignition txuas ntxiv mus ntev, tag nrho cov mob ntawm lub cav yuav deterioration, yuav tsum tau kho ntau dua los yog hloov cov khoom.

Raws li cov ntsiab lus saum toj no, nws yog ib qho tseem ceeb uas yuav tsum tau coj P0308 teeb meem code tiag tiag thiab pib kuaj xyuas thiab kho nws kom tsis txhob muaj kev puas tsuaj ntxiv thiab ua kom muaj kev nyab xeeb thiab ua haujlwm zoo ntawm koj lub tsheb.

Kev kho dab tsi yuav pab tshem tawm cov cai? P0308?

Cov kev kho uas xav tau los daws P0308 code yuav nyob ntawm seb qhov ua rau muaj teeb meem:

1. Hloov cov txim taws: Yog hais tias lub txim hluav taws xob ntawm lub tog raj kheej yim raug hnav, qias neeg lossis puas, lawv yuav tsum tau hloov nrog cov tshiab.
2. Hloov cov hlua hluav taws: Lub ignition coil lub luag hauj lwm rau lub tog raj kheej yim yuav ua rau muaj teeb meem. Hauv qhov no, lub ignition coil yuav tsum tau hloov.
3. Hloov cov hluav taws xob hluav taws xob: Cov xov hlau txuas cov hluav taws xob hluav taws xob rau cov hluav taws xob hluav taws xob lossis PCM yuav raug puas lossis tawg. Yog tias tsim nyog, cov xov hlau yuav tsum tau hloov.
4. Nozzle kho lossis hloov: Yog hais tias qhov ua rau ntawm qhov teeb meem yog faulty injector ntawm lub yim lub tog raj kheej, nws yuav kho los yog hloov nrog ib tug tshiab.
5. Tshawb xyuas thiab kho lub sijhawm: Txoj haujlwm camshaft tsis raug lossis teeb meem nrog lub sijhawm ua haujlwm tuaj yeem ua rau tsis zoo. Hauv qhov no, nws yog ib qho tsim nyog los xyuas thiab, yog tias tsim nyog, kho lub sijhawm.
6. Overhaul lossis hloov PCM: Yog tias qhov teeb meem yog vim muaj PCM tsis raug, PCM yuav tsum tau kuaj xyuas thiab, yog tias tsim nyog, kho lossis hloov.
7. Kev kuaj xyuas thiab kho cov khoom noj khoom haus: Huab cua xau los yog txhaws hauv qhov nqus tau tuaj yeem cuam tshuam rau huab cua / roj piv. Tshawb xyuas thiab, yog tias tsim nyog, kho lossis hloov qhov chaw ntawm qhov nkag.
8. Xyuas thiab kho lwm yam khoom: Yog tias tsim nyog, lwm yam khoom siv hluav taws xob, roj thiab khoom noj khoom haus uas yuav cuam tshuam rau qhov raug tua ntawm lub tog raj kheej 8 kuj yuav tsum tau tshuaj xyuas thiab kho.

Nws yog ib qho tseem ceeb uas yuav tsum tau ua kom tiav kev kuaj mob kom raug txiav txim siab qhov laj thawj ntawm qhov teeb meem thiab ua cov kev kho tsim nyog. Yog tias koj tsis muaj kev paub lossis kev txawj ntse hauv kev kho tsheb, nws raug nquahu kom koj hu rau tus kws kho tsheb tsim nyog lossis lub khw kho tsheb.

P0308 piav qhia - Lub tog raj kheej 8 Misfire (Kho yooj yim)

P0308 - Cov ntaub ntawv tshwj xeeb ntawm hom

Teeb meem code P0308 qhia txog teeb meem ignition nyob rau hauv yim lub tog raj kheej ntawm lub cav thiab tuaj yeem tshwm sim ntawm ntau yam ua rau lub tsheb. Cov npe ntawm qee lub tsheb hom nrog lawv txhais cov lej yuam kev P0308:

1. Toyota / Lexus: Lub tog raj kheej 8 Misfire pom
2. Honda/Acura: Pom tsis pom tseeb hauv lub tog raj kheej 8
3. Ford: Lub tog raj kheej 8 Misfire pom
4. Chevrolet / GMC: Lub tog raj kheej 8 Misfire pom
5. BMW: Pom tsis pom tseeb hauv lub tog raj kheej 8
6. Mercedes-Benz: Pom tsis pom tseeb hauv lub tog raj kheej 8
7. Volkswagen/Audi: Pom tsis pom tseeb hauv lub tog raj kheej 8
8. Hyundai/Kia: Pom tsis pom tseeb hauv lub tog raj kheej 8
9. Nissan / Infiniti: Lub tog raj kheej 8 Misfire pom
10. Subaru: Pom tsis pom tseeb hauv lub tog raj kheej 8

Qhov no tsuas yog ib daim ntawv teev npe me me ntawm cov npe tsheb uas tuaj yeem ntsib P0308 code. Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias cov ntawv sau tseg yuav txawv me ntsis nyob ntawm tus qauv thiab xyoo ntawm lub tsheb.