P045C Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Gas

P045C Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Gas

Bayanan Bayani na OBD-II

Low sigina matakin a cikin shaye gas recirculation kula da kewaye "B"

Mene ne wannan yake nufi?

Wannan Lambar Matsalar Bincike (DTC) lambar watsawa ce gabaɗaya, wanda ke nufin ya shafi motocin OBD-II sanye take da EGR. Alamar mota na iya haɗawa (amma ba'a iyakance ta ba) Land Rover, GMC, Chevrolet, Dodge, Chrysler, Ford, Toyota, Honda, da dai sauransu Ko da yake na kowa, takamaiman matakan gyara na iya bambanta da iri / ƙirar.

Waɗannan lambobin matsala na injin suna nuni ne ga rashin aiki a tsarin sake zagayawa da iskar gas. More musamman, bangaren lantarki. Tsarin sake zagayowar iskar iskar gas wani sashi ne mai mahimmanci na tsarin shaye-shayen abin hawa, wanda aikinsa shine hana samuwar NOx mai cutarwa (nitrogen oxides) a cikin silinda.

EGR yana sarrafawa ta kwamfutar sarrafa injin. Kwamfuta tana buɗewa ko rufe sake buɗe gas ɗin da ke shafar iskar gas dangane da nauyi, gudu da zafin jiki don kiyaye madaidaicin zafin silinda. Akwai wayoyi guda biyu zuwa solenoid na lantarki akan EGR wanda kwamfutar ke amfani da ita don kunna ta. Hakanan potentiometer yana cikin iskar gas mai ƙona gas, wanda ke nuna matsayin sandar EGR (tsarin aikin da ke buɗewa da rufe bututun).

Wannan yayi kama da rage hasken wuta a gidanku. Lokacin da kuka kunna mai kunnawa, hasken yana ƙara haske yayin da ƙarfin lantarki ke ƙaruwa. Kwamfutar injin ku ba ta ganin canjin wutar lantarki lokacin da take ƙoƙarin buɗewa ko rufe EGR, wanda ke nuni da cewa ta makale a wuri ɗaya. Lambobin P045C Exhaust Gas Recirculation Control Circuit "B" yana nuna babu ƙaramin canjin wutar lantarki, yana nuna cewa EGR yana buɗewa ko rufewa. P045D daidai yake, amma yana nufin tsayin kewayawa, ba ƙasa ba. Tuntuɓi takamaiman littafin gyaran abin hawan ku don sanin wane da'irar sake zagayowar iskar iskar iskar gas shine “B” don takamaiman aikace-aikacen ku.

Man da ba a sarrafa shi yana haifar da NOx a matsanancin yanayin zafi na injin silinda. Tsarin EGR yana jagorantar adadin sarrafa gas ɗin da aka sarrafa zuwa yawan amfani. Manufar ita ce a cakuda cakuda mai shigowa da isasshen don kawo zafin zafin silinda a ƙasa da wanda aka kafa NOx.

Aiki na tsarin EGR yana da mahimmanci don dalilai fiye da rigakafin NOx - yana ba da mafi kyawun lokaci don ƙarin iko ba tare da ƙwanƙwasa ba, da kuma cakuda mai mai laushi don ingantaccen tattalin arzikin mai.

da bayyanar cututtuka

Alamomin cutar za su bambanta dangane da matsayin allurar EGR a lokacin gazawa.

• Matsanancin injin gudu mai tsananin ƙarfi
• Duba hasken injin yana kunne
• Faduwar tattalin arzikin mai
• Rage iko
• Babu farawa ko mawuyacin farawa, biye da rago mai kaifi

Dalili mai yiwuwa

Dalilan wannan DTC na iya haɗawa da:

• Short circuit zuwa ƙasa
• Short circuit zuwa baturi baturi
• Bad connector tare da tura fitar fil
• Lalata a cikin mai haɗawa
• Dirty EGR allura
• Kuskuren fitar da iskar gas din solenoid
• Bad EGR
• ECU mara kyau ko kwamfuta

Hanyoyin gyara

Idan abin hawan ku ya yi tafiya ƙasa da mil 100,000 da mil 80, ana ba da shawarar ku sake duba garantin ku. Yawancin motocin suna ɗaukar garanti na sarrafa iska mai nisan mil 100,000 ko XNUMX. Na biyu, shiga yanar gizo kuma duba duk TSBs masu dacewa (Sabis na Fasaha) masu alaƙa da waɗannan lambobin da yadda ake gyara su.

Don aiwatar da waɗannan hanyoyin bincike, kuna buƙatar kayan aikin masu zuwa:

• Volt / Ohmmeter
• Siffar haɓakar iskar gas mai ƙarewa
• Jumper
• Takardun takarda biyu ko allurar dinki

Bude murfin kuma fara injin. Idan injin ba ya aiki da kyau, cire toshe daga tsarin EGR. Idan injin ya yi laushi, fil ɗin ya makale a cikin EGR. Dakatar da injin kuma maye gurbin EGR.

Dubi mai haɗin waya akan "B" EGR. Akwai wayoyi 5, wayoyi biyu na waje suna ciyar da ƙarfin baturi da ƙasa. Wayoyin tsakiya guda uku na'ura ce mai ƙarfi wanda ke nuna alamar adadin EGR zuwa kwamfutar. Tashar ta tsakiya ita ce tashar magana ta 5V.

Yi nazarin mai haɗawa sosai don fil ɗin da aka fitar, lalata, ko lanƙwasa. Duba kayan aikin wayoyin a hankali don kowane rufi ko yuwuwar gajerun da'ira. Nemo wayoyi masu buɗewa waɗanda zasu iya buɗe da'ira.

• Yi amfani da ma'aunin voltmeter don gwada kowane gubar tashar tare da jan waya kuma a ƙasa baƙar fata. Kunna maɓallin kuma nemo 12 volts da duka tashoshin ƙarshe.
• Idan ba a nuna ƙarfin lantarki ba, to akwai buɗe waya tsakanin tsarin EGR da motar ƙonewa. Idan an nuna volts 12 a gefe ɗaya kawai, tsarin EGR yana da kewaye mai buɗewa ta ciki. Sauya EGR.
• Cire haɗin mai haɗawa daga tsarin sake dawo da iskar gas kuma tare da maɓallin kunnawa da kashe injin, duba lambobi biyu na waje don iko. Rubuta wanda ke da 12 volts kuma maye gurbin mai haɗawa.
• Sanya faifan takarda a kan madaidaicin tashar da ba ta da ƙarfi, wannan ita ce ƙasan ƙasa. Haɗa tsalle -tsalle zuwa faifan takarda. Ƙasa mai tsalle. Za a ji “danna” lokacin da aka kunna EGR. Cire waya ta ƙasa kuma fara injin. Sake kunna waya kuma a wannan karon injin zai yi rauni yayin da EGR ke samun kuzari da daidaita yayin da aka cire ƙasa.
• Idan an kunna tsarin EGR kuma injin ya fara aiki ba tare da ɓata lokaci ba, to tsarin EGR yana cikin tsari, matsalar lantarki ce. Idan ba haka ba, dakatar da injin kuma maye gurbin EGR.
• Bincika tashar madogara na mai haɗa iskar gas mai ƙarewa. Kunna maɓallin. Idan kwamfutar tana aiki yadda yakamata, ana nuna 5.0 volts. Kashe mabuɗin.
• Koma zuwa zane -zanen waya na EGR kuma nemo tashar tashar wutar lantarki ta EGR akan kwamfutar. Saka fil ko faifan takarda a cikin mai haɗawa akan kwamfutar a wannan lokacin don duba lambar sadarwar.
• Kunna maɓallin. Idan 5 volts yana nan, kwamfutar tana da kyau kuma matsalar tana cikin kayan haɗin wayoyi zuwa tsarin EGR. Idan babu ƙarfin lantarki, to kwamfutar tana da lahani.

Shawara don gyara da'irar sake maimaita iskar gas ba tare da maye gurbin komputa ba: Kalli zane -zanen wayoyi da nemo tashar wutar lantarki mai nuna zafin jiki. Duba wannan tashar tare da maɓallin da aka haɗa. Idan 5 volt ref. Voltage yana nan, kashe maɓallin kuma yi alama tashoshin tallafi guda biyu da aka yi amfani da su cikin waɗannan gwaje -gwajen. Cire haɗin komputa, sayar da waya mai tsalle tsakanin waɗannan fil biyu. Sanya mai haɗawa kuma tsarin EGR zai yi aiki ba tare da maye gurbin kwamfutar ba.

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 P045C?

Idan har yanzu kuna buƙatar taimako tare da DTC P045C, 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.