P2249 O2 Sensor Reference Voltage Bank 2 Sensor 1 Low

P2249 O2 Sensor Reference Voltage Bank 2 Sensor 1 Low

Bayanan Bayani na OBD-II

Bankin Reference Sensor na O2 2 Sensor 1 Low

Menene ma'anar P2249?

Wannan Lambar Matsalar Bincike (DTC) lambar watsawa ce gabaɗaya kuma tana amfani da motocin OBD-II da yawa (1996 da sabuwa). Wannan na iya haɗawa, amma ba'a iyakance shi ba, motoci daga Honda, Ford, Mazda, VW, Mercedes-Benz, Audi, Hyundai, Acura, BMW, da dai sauransu Duk da yanayin gabaɗaya, ainihin matakan gyara na iya bambanta dangane da shekarar na ƙira. samfura, samfura da watsawa. sanyi.

Lambar da aka adana P2249 tana nufin tsarin sarrafa wutar lantarki (PCM) ya gano ƙarancin ƙarfin tunani don babban firikwensin O2 don toshe injin 1. Sensor 2 yana nufin firikwensin sama kuma toshe XNUMX yana nufin toshe injin wanda baya dauke da lambar silinda daya.

Kwamfutar PCM tana lura da rabon iskar injin don kowane jere na injiniya ta amfani da bayanai daga firikwensin iskar oxygen. An gina kowane firikwensin iskar oxygen ta amfani da wani abin firikwensin zirconia wanda yake a tsakiyar gidan ƙarfe mai iska. Ƙananan wayoyin lantarki (galibi platinum) suna haɗa firikwensin zuwa wayoyi a cikin haɗin haɗin haɗin firikwensin oxygen kuma mai haɗawa yana haɗi zuwa cibiyar sadarwa mai sarrafawa (CAN) wanda ke haɗa kayan haɗin firikwensin oxygen zuwa mai haɗa PCM.

Kowace firikwensin oxygen ana birgima (ko murɗa) a cikin bututu mai ƙarewa. An sanya shi don abin da ke ji yana kusa da tsakiyar bututu. Lokacin da iskar gas mai ɓarna ke barin ɗakin ƙonewa (ta hanyar yawan shaye -shaye) da wucewa cikin tsarin shaye -shaye (gami da masu jujjuyawa masu juyawa), suna wucewa ta cikin firikwensin oxygen. Iskar gas tana shiga firikwensin iskar oxygen ta hanyoyin iska da aka ƙera ta musamman a cikin gidan ƙarfe kuma tana zagayawa a cikin abubuwan da ake ji. Ana jawo iskar iskar da ke yawo ta cikin ramukan waya a cikin gidan firikwensin, inda suke cika ƙaramin ɗakin a tsakiya. Sannan iska (a cikin ƙaramin ɗakin) yana da zafi. Wannan yana haifar da ions oxygen don samar da makamashi, wanda PCM ya gane shi azaman ƙarfin lantarki.

Bambance -banbance tsakanin adadin ions iskar oxygen a cikin iska na yanayi (wanda aka jawo cikin firikwensin O2) da adadin adadin iskar oxygen a cikin shaye -shaye yana haifar da ions oxygen a cikin firikwensin O2 cikin sauri kuma ba tare da ɓata lokaci ba. ... Yayin da ions iskar oxygen ke motsawa tsakanin yadudduka na platinum, ƙarfin fitarwa na firikwensin oxygen yana canzawa. PCM tana ganin waɗannan canje -canje a cikin fitowar firikwensin oxygen kamar yadda canje -canje a cikin iskar oxygen a cikin iskar gas. Abubuwan da ake fitarwa daga na’urar firikwensin iskar oxygen sun yi ƙasa lokacin da ƙarin iskar oxygen ke cikin shaye -shaye (yanayin durƙushewa) kuma mafi girma lokacin da ƙarancin iskar oxygen ke cikin shaye -shaye (yanayin arziki).

Idan PCM ya gano ƙarancin ƙimar lantarki a cikin ƙarfin siginar firikwensin oxygen, za a adana lambar P2249 kuma fitilar mai nuna rashin aiki (MIL) na iya haskakawa. Yawancin motocin za su buƙaci da'irar ƙonewa da yawa (akan gazawa) don kunna hasken faɗakarwa.

Hankula oxygen haska O2:

Menene tsananin wannan DTC?

Rashin isasshen ƙarfin lantarki akan keɓaɓɓen siginar firikwensin O2 na iya haifar da raguwar tattalin arzikin mai da rage aikin injin. P2249 yakamata a rarrabe shi da mahimmanci kuma yakamata a gyara shi da wuri -wuri.

Menene wasu alamomin lambar?

Alamomin lambar matsala P2249 na iya haɗawa da:

• Rage ingancin man fetur
• Rage ƙarfin injin
• Lambobin Misfire da aka Adana ko Lambobin Shaƙatawa / Kaya
• Fitilar injin sabis zai yi haske nan ba da jimawa ba

Mene ne wasu abubuwan da ke haifar da lambar?

Dalilan wannan lambar na iya haɗawa da:

• Fuskar firikwensin O2
• Na'urar haska oxygen / s
• An ƙone, ya bushe, ya karye, ko haɗin haɗin waya da / ko masu haɗawa

Menene wasu matakai don warware matsalar P2249?

Kuna buƙatar na'urar sikirin bincike, volt / ohmmeter na dijital (DVOM), da tushen bayanan abin hawa abin dogara don tantance lambar P2249 daidai.

Kuna iya adana lokaci ta hanyar nemo Sabis na Fasaha (TSBs) wanda ke haifar da lambar da aka adana, abin hawa (shekara, kera, ƙirar, da injin) da alamun da aka samo. Ana iya samun wannan bayanin a cikin tushen bayanan abin hawan ku. Idan kun sami madaidaicin TSB, zai iya gyara matsalar ku da sauri.

Bayan kun haɗa na'urar daukar hotan takardu zuwa tashar binciken abin hawa kuma ku sami duk lambobin da aka adana da kuma bayanan daskarar da ke da alaƙa, rubuta bayanan (idan lambar ta zama ta ɓace). Bayan haka, share lambobin kuma gwada fitar da motar har sai abubuwa biyu sun faru; an mayar da lambar ko PCM ya shiga yanayin shirye.

Lambar na iya zama mafi wahalar ganewa idan PCM ta shiga yanayin shirye a wannan lokacin saboda lambar ba ta wuce -wuri. Yanayin da ya haifar da dorewar P2249 na iya buƙatar yin muni kafin a iya samun cikakkiyar ganewar asali. Idan an dawo da lambar, ci gaba da bincike.

Kuna iya samun ra'ayoyin mai haɗawa, pinouts mai haɗawa, wuraren haɗin gwiwa, zane -zanen wayoyi, da zane -zanen bincike (masu alaƙa da lambar da abin hawa da ake tambaya) ta amfani da tushen bayanan abin hawan ku.

Duba a hankali duba wayoyi masu haɗin gwiwa da masu haɗawa. Gyara ko maye gurbin yanke, ƙonewa, ko lalacewar wayoyi.

Yi amfani da DVOM don bincika ƙarfin lantarki na firikwensin O2 a daidai fil ɗin mai haɗawa (kusa da firikwensin). Idan ba a sami ƙarfin lantarki ba, bincika fuses na tsarin. Sauya fiyu masu busawa ko nakasa idan ya cancanta.

Idan an gano ƙarfin lantarki, bincika da'irar da ta dace a mai haɗa PCM. Idan ba a gano wani ƙarfin lantarki ba, yi zargin buɗe kewaye tsakanin firikwensin da ake tambaya da PCM. Idan an sami ƙarfin lantarki a wurin, yi zargin kuskuren PCM ko kuskuren shirye -shiryen PCM.

Don bincika firikwensin O2: Fara injin kuma ba shi damar isa zafin zafin aiki na al'ada. Bari injin ya lalace (a tsaka tsaki ko filin ajiye motoci). Tare da na'urar daukar hotan takardu da aka haɗa da tashar binciken abin hawa, lura da shigarwar firikwensin oxygen a cikin rafin bayanai. Rage rafin bayanan ku don haɗa bayanai masu dacewa kawai don amsawa da sauri.

Idan firikwensin iskar oxygen yana aiki yadda yakamata, ƙarfin wutar lantarki a saman firikwensin iskar oxygen zuwa sama na mai jujjuyawar mahaifa zai zagaya daga 1 zuwa 900 millivolts lokacin da PCM ta shiga yanayin madaidaicin madaidaiciya. Binciken cat-cat zai kuma zagaya tsakanin 1 da 900 millivolts, amma za a saita su a wani wuri kuma su kasance cikin kwanciyar hankali (idan aka kwatanta da binciken pre-cat). Na'urorin firikwensin Oxygen waɗanda basa aiki yadda yakamata yakamata a ɗauka cewa suna da lahani idan injin yana cikin tsari mai kyau.

• Fuse firikwensin O2 ba shine dalilin lambar P2249 da aka adana ba, amma martani ne ga ɗan gajeren da'irar a cikin da'irar.

Tattaunawar DTC mai dangantaka

• A halin yanzu babu batutuwa masu alaƙa a cikin dandalin mu. Sanya sabon taken akan dandalin yanzu.

Kuna buƙatar ƙarin taimako tare da lambar P2249?

Idan har yanzu kuna buƙatar taimako tare da DTC P2249, aika tambaya a cikin sharhin da ke ƙasa wannan labarin.

NOTE. An ba da wannan bayanin don dalilai na bayanai kawai. Ba a yi nufin amfani da shi azaman shawarar gyara ba kuma ba mu da alhakin duk wani mataki da za ku ɗauka a kan kowane abin hawa. Duk bayanan da ke wannan shafin ana kiyaye su ta haƙƙin mallaka.