P2457 Cikakken Tsarin Ayyukan Sanyi na Iskar Gas
Abubuwa
P2457 Cikakken Tsarin Ayyukan Sanyi na Iskar Gas
Bayanan Bayani na OBD-II
Siffofin Siffar Tsarin Sharar iskar Gas
Mene ne wannan yake nufi?
Wannan Lambar Matsalar Bincike (DTC) lambar watsawa ce gaba ɗaya, wanda ke nufin ya shafi duk abin hawa tun 1996 (Ford, Dodge, GMC, Chevrolet, Mercedes, VW, da sauransu). Kodayake gabaɗaya a yanayi, takamaiman matakan gyara na iya bambanta dangane da alama / ƙirar.
Idan abin hawa na OBD-II ɗinku yana nuna lambar P2457, yana nufin cewa tsarin sarrafa wutar lantarki (PCM) ya gano yuwuwar ɓarna a cikin tsarin sanyaya gas ɗin sake dawowa (EGR). Wannan na iya zama matsalar inji ko matsalar lantarki.
Tsarin EGR ne ke da alhakin dawo da wasu iskar gas ɗin da aka dawo da su zuwa ɗakin cin abinci don a iya ƙone shi a karo na biyu. Wannan tsari ya zama dole don rage adadin sinadarin nitrogen oxide (NOx) da ake fitarwa zuwa sararin samaniya. NOx yana ba da gudummawa ga fitowar iskar gas wanda ke lalata ƙarancin ozone.
Bukatar tsarin sanyaya EGR yana da iyaka (gwargwadon yadda na sani) ga motocin dizal. Ana amfani da injin coolant ɗin don rage zafin zafin iskar gas ɗin injin kafin su shiga cikin bututun sake dawo da iskar gas. Na'urar firikwensin zafin iskar gas tana sanar da PCM canje -canje a cikin zafin iskar gas kusa da bawul ɗin sake dawo da iskar gas. PCM yana kwatancen bayanai daga firikwensin zafin jiki na EGR da firikwensin zafin zafin gas na zaɓi don tantance ko tsarin sanyaya EGR yana aiki yadda yakamata.
Mai sanyaya iskar gas mai ƙonawa yawanci yana kama da ƙaramin radiator (ko mahimmin hita) tare da ƙege a waje, shigar ruwa da kanti, da bututu guda ɗaya ko fiye ko bututun da ke ratsa tsakiyar. Iska na gudana ta cikin fikafikan don rage yawan zafin jiki na mai sanyaya (yana gudana ta cikin diamita na waje na mai sanyaya) da kuma shaye shaye (yana gudana ta tsakiyar mai sanyaya).
Ƙarin firikwensin zafin zafin iskar gas yawanci yana cikin bututun bututu, yayin da firikwensin zafin zafin iskar gas ɗin yana kusa da bawul ɗin sake buɗe gas ɗin. Idan shigarwar firikwensin zafin jiki na EGR baya cikin ƙayyadaddun shirye -shiryen da aka tsara, ko kuma idan shigarwar firikwensin EGR bai yi ƙasa da naƙasasshen iskar gas mai ƙoshin wuta ba, za a adana P2457 kuma alamar alamar rashin aiki na iya haskakawa.
Alamomi da tsanani
Tun da P2457 yana da alaƙa da tsarin fitar da hayaƙi, wannan ba a ɗauka lambar filashi ce. Alamomin lambar P2457 na iya haɗawa da:
- Lokacin da aka adana wannan lambar, ƙila babu alamun cutar
- Rage ingancin man fetur
- Lambar ajiya
- Hasken fitilar sarrafawa na rashin aiki
- Ruwa mai sanyaya
- Fashewar iskar gas
- Lambobin firikwensin Zazzabin Gas
dalilai
Dalilai masu yiwuwa don saita wannan lambar:
- Low engine coolant matakin
- Na'urar haska zafin zafin iskar gas ta lalace
- M hasarar gas haska haska
- Shashasha ya zube
- Mai sanyaya iskar gas mai kumbura ya toshe
- Injin zafi
Hanyoyin bincike da gyara
Kyakkyawan farawa shine koyaushe bincika takaddun sabis na fasaha (TSB) don takamaiman abin hawa. Matsalar ku na iya zama sanannen batun tare da sanannen gyaran masana'anta kuma yana iya adana ku lokaci da kuɗi yayin bincike.
Wasu nau'in na'urar daukar hotan takardu, na'urar volt/ohmmeter na dijital, littafin sabis na abin hawa (ko makamancinsa), da ma'aunin zafi da sanyio na infrared tare da ma'anar laser duk kayan aikin da zan yi amfani da su don tantance P2457.
Zan iya farawa ta hanyar duba kayan aikin wayoyi da masu haɗin haɗin da ke da alaƙa da firikwensin zafin jiki na EGR da firikwensin zafin iskar gas. Yi binciken abubuwan haɗin waya da ke kusa da bututu masu zafi da yawa. Gwada batirin da aka ɗauka, duba tashoshin batir, igiyoyin batir da fitowar janareta kafin a ci gaba.
Ina son haɗa na'urar daukar hotan takardu zuwa motar da dawo da duk lambobin da aka adana da daskare bayanan firam a wannan lokacin. Yi bayanin bayanin saboda kuna iya buƙatarsa idan ya zama lambar dakatarwa.
Na kula da kwararar bayanai na na'urar daukar hotan takardu don sanin ko EGR a zahiri yana sanyaya. Kunkuntar da kwararar bayanan ku don haɗawa da bayanan da kuke buƙata kawai don saurin amsawa da sauri. Idan na'urar daukar hotan takardu ta nuna ainihin shigarwar zafin jiki yana cikin takamaiman bayanai, yi zargin PCM mai lahani ko kuskuren shirye -shiryen PCM.
Idan abubuwan da aka karanta daga firikwensin zafin zafin iskar gas ɗin ba daidai bane ko ba a cikin kewayo ba, duba firikwensin biyo bayan shawarwarin masana'anta. Sauya firikwensin idan bai dace da ƙayyadaddun masana'anta ba. Idan firikwensin yana cikin yanayi mai kyau, fara gwada da'irar firikwensin zafin jiki na EGR. Cire duk masu kula da haɗin gwiwa kafin gwaji tare da DVOM. Gyara ko maye gurbin da'irori masu buɗewa ko gajarta kamar yadda ya cancanta.
Idan tsarin wutar lantarki na firikwensin zafin jiki na EGR yana aiki yadda yakamata, yi amfani da ma'aunin zafi mai zafi na infrared don duba zafin iskar gas a mashigar mai sanyaya EGR kuma a tashar mai sanyaya EGR (tare da injin yana aiki da yanayin zafin aiki na al'ada). Kwatanta sakamakon da aka samu tare da ƙayyadaddun masana'anta kuma maye gurbin abubuwan da ke da lahani idan ya cancanta.
Ƙarin bayanin kula:
- Bayanin kasuwa da sauran abubuwan da ke cikin tsarin shaye -shaye na iya haifar da sauye -sauye a yanayin zafin iskar gas ɗin, wanda zai iya haifar da adana wannan lambar.
- An san matsalolin matsin lamba na baya da ke haifar da ƙarancin isasshen matattara (DPF) yana shafar yanayin ajiya na P2457.
- Bincika da gyara lambobin da suka shafi DPF kafin yunƙurin gano wannan lambar.
- Idan an gyara tsarin EGR ta amfani da kayan kulle kulle na EGR (wanda OEM da kasuwa ke bayarwa a halin yanzu), ana iya adana irin wannan lambar.
Tattaunawar DTC mai dangantaka
- 2014 VW Passat 2.0TDI P2457 - Farashin: + RUB XNUMXShin kowa yana da zane mai kwararar ruwa don VW Passat 2014 TDI 2.0. Ma'adinan ya yi zafi a kwanakin baya kuma duba idan hasken injin tare da lambar P2457 (aikin sanyaya EGR) ya zo. Yana aiki lafiya a cikin sito a cikin saurin gudu, zazzabi ya hau zuwa 190 kuma ya tsaya a can. Wata rana na lura ...
Kuna buƙatar ƙarin taimako tare da lambar ku ta p2457?
Idan har yanzu kuna buƙatar taimako tare da DTC P2457, 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.
