P0139 - HO2S Bank 1 Sensor 2 O1 Sensor Circuit Slow Response (B2SXNUMX)

P0139 - bayanin lambar matsala

Na'urar firikwensin oxygen mai zafi 2 (ho2s), a ƙasa na mai canza hanyar catalytic ta hanyoyi uku (da yawa), yana lura da matakin iskar oxygen a cikin iskar gas na kowane bankin silinda. Don kyakkyawan aiki mai ƙara kuzari, iskar zuwa rabon mai (raɗin iskar man fetur) dole ne a kiyaye shi kusa da madaidaicin ma'aunin stoichiometric. Wutar lantarki mai fitarwa na firikwensin ho2s yana canzawa ba zato ba tsammani kusa da rabon stoichiometric.

Tsarin sarrafa injin (ECM) yana daidaita lokacin allurar mai ta yadda rabon man iska ya kusan kusan stoichiometric. Dangane da kasancewar iskar oxygen a cikin iskar gas, firikwensin ho2s yana haifar da ƙarfin lantarki na 0,1 zuwa 0,9 V. idan abun ciki na iskar oxygen na iskar iskar gas ya karu, rabon iskar man fetur ya zama maras nauyi.

Samfurin ECM yana fassara gauraye mai raɗaɗi lokacin da ƙarfin firikwensin ho2s bai kai 0,45V ba. idan abun ciki na iskar oxygen na iskar gas ya ragu, rabon iskar man fetur ya zama mai wadata. Samfurin ECM yana fassara siginar arziki lokacin da ƙarfin firikwensin ho2s ya wuce 0,45V.

Menene ma'anar DTC P0139?

Lambar matsala P0139 tana da alaƙa da firikwensin oxygen na baya na direba kuma yana nuna cewa ba a daidaita rabon iskar man injin ɗin daidai ta firikwensin oxygen ko siginar ECM. Wannan na iya faruwa bayan injin ya ɗumama ko lokacin da injin ɗin baya aiki akai-akai. "Bank 1" yana nufin bankin cylinders wanda ya ƙunshi silinda #1.

Lambar P0139 misali ne na OBD-II na gama gari kuma yana nuna cewa bankin 1 na firikwensin iskar oxygen, firikwensin 1, bai nuna juzu'in ƙarfin lantarki na ƙasa da 0,2 volts na daƙiƙa 7 ba yayin lokacin kulle mai. Wannan saƙon yana nuna jinkirin amsawar firikwensin kamar yadda Module Control Engine (ECM) ya gano.

Dalili mai yiwuwa

Don lambar P0139, ECM yana rage samar da mai ga injin yayin raguwar injin kuma duk na'urori masu auna firikwensin O2 yakamata su amsa tare da ƙarfin fitarwa na ƙasa da 2 V, yana nuna babban abun ciki na oxygen a cikin iskar gas. An saita lambar kuskure idan bankin 2 O1 firikwensin, firikwensin 1, bai amsa yanke mai na daƙiƙa 7 ko fiye ba.

Ana iya haifar da hakan

• wuce gona da iri a cikin kwararar iskar gas saboda yuwuwar leaks a cikin tsarin allurar mai,
• rashin aiki na baya mai zafi oxygen firikwensin, block 1,
• Bankin firikwensin oxygen mai zafi na baya 1 igiyoyin waya (buɗe ko gajere),
• matsaloli tare da haɗin lantarki na baya mai zafi oxygen kewaye 1 baturi,
• rashin isasshen man fetur,
• kuskuren allurar mai,
• iska ta zube a cikin sha,
• lahani a cikin sashin firikwensin oxygen tare da dumama baya,
• Bankin firikwensin oxygen mai zafi na baya 1 igiyoyin waya (buɗe ko gajere),
• rashin aiki na kewaye 1 na na'urar firikwensin oxygen mai zafi,
• rashin isasshen man fetur,
• kuskuren injectors na man fetur da kuma yiwuwar rashin aiki a cikin leaks na iska,
• da kuma fitar da iskar gas.

Menene alamun lambar P0139?

• Injin na iya tsayawa ko ya yi tauri saboda yawan man fetur.
• Injin na iya nuna shakku yayin hanzari bayan raguwa.
• Hasken injin duba (ko hasken kula da injin) ya zo.
• Babban amfani da mai.
• Yawan hayaki mai yawa a cikin tsarin shaye-shaye.

Yadda ake tantance lambar P0139?

1. Duba lambobin da bayanan bayanai, ɗaukar bayanai daga firam ɗin.
2. Saka idanu karatun firikwensin O2 don tantance idan ƙarfin lantarki ya faɗi ƙasa da 0,2 V yayin ragewa.
3. Bincika matsa lamba na man inji don ɗigogi a cikin tsarin allurar mai.
4. Tabbatar cewa firikwensin O2 bai gurbata da abubuwa na waje kamar mai sanyaya ko mai ba.
5. Bincika tsarin shaye-shaye don lalacewa ko matsaloli, musamman a yankin mai juyawa.
6. Yi gwaje-gwajen da masana'anta suka bayar don ƙarin bincike.

Kurakurai na bincike

Don guje wa kuskure, bi waɗannan ƙa'idodi masu sauƙi:

Idan duka na'urori masu auna firikwensin (1 da 2) a gefe ɗaya na injin suna jinkirin amsawa, kula da yuwuwar ɗigowar allurar mai a bankin farko na injin.

Kafin wannan lambar ta faru, warware duk wata matsala mai yuwuwa tare da madaidaicin bawul ɗin da zai iya tsoma baki tare da tsarin kashe mai.

Bincika yanayin mai juyawa don lalacewa wanda zai iya sa firikwensin ya yi rauni.

Yaya girman lambar matsala P0139?

Wannan lambar tana nuna cewa ko da na'urar firikwensin yana da kyau, injin ɗin yana ci gaba da isar da mai yayin raguwa, koda lokacin da ba a buƙata ba. Wannan na iya haifar da ƙara yawan man fetur da ma injin ɗin ya tsaya lokacin da aka tsaya idan mai yawa yana shiga cikin silinda.

ECM (samfurin sarrafa injin) ba zai iya sarrafa kashe mai idan ba a rufe masu allurar mai ba, wanda zai iya haifar da yawan amfani da mai.

Menene gyara zai gyara lambar P0139?

Sauya firikwensin O2 don firikwensin banki 1 ya kamata a yi shi ne kawai bayan an kammala duk sauran binciken tsarin mai da shaye-shaye.

1. Da farko, duba yanayin tsarin man fetur kuma maye gurbin mai zubar da man fetur idan an same shi.
2. Sauya mai kara kuzari a gaban firikwensin idan ya yi kuskure.
3. Kafin maye gurbin firikwensin O2, tsaftace alluran kuma tabbatar da cewa an gyara duk wani ɗigogi.

Jinkirin amsa firikwensin O2 na iya kasancewa saboda tsufa da gurɓatawa. Tun da firikwensin O2 yana auna abun da ke cikin iskar oxygen na iskar gas, duk wani ajiya ko gurɓataccen abu a samansa na iya yin tsangwama ga ma'aunin daidai. A irin waɗannan lokuta, tsaftacewa ko maye gurbin firikwensin zai iya taimakawa wajen dawo da aikinsa da inganta martaninsa ga canje-canje a cikin iskar gas.

Yadda ake Gyara Lambar Injin P0139 a cikin Minti 3 [Hanyoyin DIY 2 / Kawai $ 8.24]