P2056 Reductant Injection Valve Circuit / Open, Bank 2, Bank 2

P2056 Reductant Injection Valve Circuit / Open, Bank 2, Bank 2

Bayanan Bayani na OBD-II

Reductant Injection Valve Circuit / Open Block 2, Bank 2

Mene ne wannan yake nufi?

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, Ford, Mercedes Benz, Sprinter, Smart, Ram, da dai sauransu Yayin da gabaɗaya, ainihin matakan gyara na iya bambanta dangane da shekarar ƙirar, ƙirar, ƙirar, da tsarin watsawa.

Lambar da aka adana P2056 tana nufin tsarin sarrafa wutar lantarki (PCM) bai gano wani ƙarfin lantarki akan da'irar sarrafawa don bawul ɗin allurar ragewa don injin toshe guda biyu da tsarin dawo da ƙara kuzari (SCR) tsarin biyu. Bankin 2 yana nufin ƙungiyar injiniya wanda BA ya ƙunshi lambar silinda ɗaya. Toshe 2 yana nuna cewa ana amfani da tsarin allurar rage yawan allura ko tsarin SCR.

Tsarin mai haɓakawa yana da alhakin rage (galibi) duk iskar da ke fitarwa, kodayake wasu aikace -aikacen kuma suna sanye da tarkon NOx.

Tsarin sake dawo da iskar Gas (EGR) ya ɗauki wani mataki na rage fitar da hayaƙi na NOx. Koyaya, manyan injunan diesel na yau ba za su iya cika ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙawancen tarayya (US) tare da kawai EGR, DPF / catalytic converter, da NOx trap. A saboda wannan dalili, an ƙirƙiri tsarin rage yawan kuzari (SCR).

Tsarin SCR suna allurar wani tsari mai ragewa ko Diesel Exhaust Fluid (DEF) a cikin iskar gas ɗin da ke saman matattara mai ƙarfi, tarkon NOx da / ko mai jujjuyawa ta hanyar bawul ɗin allurar ragewa (solenoid). Allurar da aka yi daidai da lokacin DEF tana haɓaka zafin abin tace kuma tana ba shi damar yin aiki da inganci. Wannan yana ƙara tsawon rayuwar sabis na abubuwan tacewa kuma yana taimakawa rage fitar da gurɓatattun iskar gas mai haɗari zuwa cikin yanayi.

Duk tsarin SCR ana sarrafawa da sa ido ta ko dai PCM ko mai sarrafa kansa (wanda ke hulɗa da PCM). A kowane hali, mai sarrafawa yana lura da O2, NOx da firikwensin zafin firikwensin gas (gami da sauran abubuwan shiga) don ƙayyade lokacin da ya dace don allurar DEF (reductant). Ana buƙatar allurar DEF madaidaiciya don kiyaye zafin iskar gas a cikin abubuwan da aka yarda da su kuma don inganta tacewar gurɓatattun abubuwa.

Ana amfani da rage dumama mai daskarewa don hana injin fitar da injin dizal daga daskarewa a matsanancin yanayin zafi. Waɗannan masu hura wutar galibi suna cikin tafkin DEF da / ko a cikin bututu na samar da bututun wakili.

Idan PCM ta gano ƙarancin ƙarfin lantarki a cikin da'irar sarrafawa don bawul ɗin allurar raguwa don toshe injin biyu, toshe biyu, za a adana lambar P2056 kuma fitilar alamar rashin aiki na iya haskakawa.

Menene tsananin wannan DTC?

Lambar P2056 da aka adana yakamata a kula da shi da mahimmanci kuma yakamata a magance shi da wuri -wuri. Ana iya kashe tsarin SCR saboda wannan. Lalacewar mai haɓakawa na iya faruwa idan ba a gyara yanayin da ya taimaka ga dorewar lambar ba a kan kari.

Menene wasu alamomin lambar?

Alamomin lambar matsala P2056 na iya haɗawa da:

• Rage aikin injiniya
• Bakin hayaƙi mai yawa daga shaye -shayen abin hawa
• Rage ingancin mai
• Sauran lambobin da suka shafi SCR

Mene ne wasu abubuwan da ke haifar da lambar?

Dalilan wannan lambar na iya haɗawa da:

• Bawul din rage allura mara kyau
• Buɗewa ko gajeren zango a cikin ragin sarrafa madaidaicin allurar wakili
• Rashin DEF a cikin tanki
• Bad SCR / PCM mai sarrafawa ko kuskuren shirye -shirye

Menene wasu matakai don warware matsalar P2056?

Don tantance lambar P2056, kuna buƙatar samun dama ga na'urar binciken cuta, volt / ohmmeter na dijital (DVOM), da takamaiman tushen abin binciken bayanai.

Idan za ku iya samun Bulletin Sabis na Fasaha (TSB) daidai da shekarar kera, kera da samfurin abin hawa; kazalika da ƙaurawar injin, lambar da aka adana / lambobin da alamomin da aka gano, yana iya ba da bayanan bincike masu amfani.

Yakamata ku fara ganewar asali ta hanyar duba kayan haɗin gwiwa da masu haɗin tsarin dumama mai ragewa. Wayoyin da aka ƙone ko suka lalace da / ko masu haɗawa dole ne a gyara ko musanya su kafin a ci gaba.

Sannan haɗa na'urar daukar hotan takardu zuwa soket ɗin abin hawa da dawo da duk lambobin da aka adana da kuma daskare bayanan firam ɗin daidai. Yi bayanin wannan bayanin kafin share lambobin kuma gwada tuƙin abin hawa har sai PCM ta shiga yanayin shirye ko an sake saita lambar.

Lambar tana tsaka -tsaki kuma tana iya zama da wahala a tantance (a halin yanzu) idan PCM ta shiga cikin yanayin shirye. A wannan yanayin, yanayin da ya ba da gudummawa ga riƙe da lambar na iya buƙatar yin muni kafin a iya yin cikakken bincike.

Idan lambar ta sake saitawa, bincika tushen bayanan abin hawan ku don zane -zanen toshe na bincike, makullin mai haɗawa, ra'ayoyin fuska mai haɗawa, da hanyoyin gwaji da ƙayyadaddun abubuwa. Kuna buƙatar wannan bayanin don kammala mataki na gaba a ganewar ku.

Yi amfani da DVOM don bincika samar da wutar lantarki na tsarin kula da SCR. Duba fuse tare da da'irar da aka ɗora don gujewa kamuwa da cuta. Idan an sami madaidaicin iko (ƙarfin baturi) da da'irar ƙasa, yi amfani da na'urar daukar hotan takardu don kunna bawul ɗin injector (solenoid) kuma duba ƙarfin fitowar da'irar sarrafawa. Idan ƙarfin lantarki bai isa ba, yi zargin cewa mai sarrafa yana da lahani ko yana da kuskuren shirye -shirye.

Idan da'irar fitowar wutar lantarki tana cikin ƙayyadaddun bayanai, yi amfani da DVOM don gwada bawul ɗin allurar da ake tambaya. Idan bawul ɗin bai dace da ƙayyadaddun masana'anta ba, ana zargin ya gaza.

• Bawul ɗin rage allura shine ainihin injector na tushen solenoid wanda ke fesa rage ruwa a cikin bututu mai ƙarewa.

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 P2056?

Idan har yanzu kuna buƙatar taimako tare da DTC P2056, 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.