P0407 Ƙananan ƙima na kewaye firikwensin B na tsarin sake dawo da iskar gas

OBD-II Lambar Matsala - P0407 - Takardar Bayanai

P0407 - Ƙananan sigina a cikin firikwensin recirculation na iskar gas B.

P0407 lambar OBD-II ce ta gama gari don matsalar wutar lantarki ta EGR wacce siginar da aka aika daga da'ira zuwa kwamfutar injin ba ta da yawa kuma ba ta yi daidai da ma'aunin da masana'anta suka yarda da su ba.

Menene ma'anar lambar matsala P0407?

Wannan lambar ita ce lambar watsawa gaba ɗaya. Ana ɗaukarsa ta duniya kamar yadda ta shafi duk kera da ƙirar abin hawa (1996 da sabuwa), kodayake takamaiman matakan gyara na iya bambanta kaɗan dangane da ƙirar.

Akwai kayayyaki daban-daban na tsarin sake zagayowar iskar gas, amma duk suna aiki iri ɗaya. Ƙarƙashin Gas Recirculation Valve wani bawul ne da PCM (Powertrain Control Module) ke sarrafawa wanda ke ba da damar auna yawan iskar iskar gas don komawa cikin silinda don konewa tare da cakuda iska / man fetur. Domin iskar iskar iskar iskar iskar iskar iskar iskar iskar iskar iskar iskar iskar oxygen ce, yin allura da su a cikin silinda zai iya rage zafin konewa, wanda ke taimakawa wajen rage hayakin NOx (nitrogen oxide).

Ba a buƙatar EGR a lokacin fara sanyi ko lokacin bacci. EGR yana samun kuzari a ƙarƙashin wasu sharuɗɗa, kamar lokacin farawa ko ragi. Ana ba da iskar gas ɗin da aka ƙera a ƙarƙashin wasu sharuɗɗa, kamar juzu'i na juzu'i ko raguwa, gwargwadon zafin injin da kaya, da dai sauransu. . Idan ya cancanta, ana kunna bawul ɗin, yana ba da damar iskar gas ta shiga cikin silinda. Wasu tsarin suna fitar da iskar gas kai tsaye zuwa cikin silinda, yayin da wasu kawai ke saka su cikin abubuwan ci, daga inda aka jawo su cikin silinda. yayin da wasu kawai ke allurar da shi a cikin kayan abinci mai yawa, daga inda aka ja shi zuwa cikin silinda.

Wasu tsarin EGR suna da sauƙi, yayin da wasu sun fi rikitarwa. Bawul ɗin sarrafa gas ɗin da ake sarrafawa ta hanyar lantarki ana sarrafa kwamfuta kai tsaye. Haɗin yana haɗawa da bawul ɗin da kansa kuma PCM ne ke sarrafa shi lokacin da ya ga buƙata. Zai iya zama wayoyi 4 ko 5. Yawanci filayen 1 ko 2, da'irar ƙonewa 12V, da'irar tunani na 5V, da kewaye. Sauran tsarin ana sarrafa su ta injin. Yana da kyau kai tsaye. PCM yana sarrafa madaidaicin injin wanda, lokacin da aka kunna shi, yana ba da damar injin ɗin ya yi tafiya zuwa buɗe valve EGR. Irin wannan bawul ɗin EGR shima dole ne ya sami haɗin lantarki don da'irar amsawa. Madaidaicin amsawar bawul ɗin EGR yana ba PCM damar ganin ko fil ɗin EGR ɗin yana tafiya daidai.

Idan da'irar mayar da martani ta gano cewa ƙarfin lantarki yana da ƙarancin ƙima ko ƙasa da takamaiman ƙarfin lantarki, ana iya saita P0407.

Lura: wannan lambar daidai take da p0405. Bambancin shine DTC p0405 yana nufin firikwensin "A" kuma P0407 yana nufin firikwensin EGR "B". Koma zuwa takamaiman littafin gyara abin hawa don wurin na'urori masu auna sigina "A" da "B".

Cutar cututtuka

Yawancin injuna ba sa buƙatar tsarin EGR suyi aiki yadda ya kamata saboda suna bin ƙa'idodin fitar da iska. Wannan yana nufin cewa tare da lambar P0407, akwai babban damar cewa direban ba zai lura da wata alama ba banda hasken Injin Duba. A wasu lokuta, ana iya samun raguwar amfani da man fetur ko ƴan sauyi yayin haɓakawa.

Alamomin lambar matsala P0407 na iya haɗawa da:

• Hasken MIL (Alamar rashin aiki)

Abubuwan da suka dace don P0407 code

Yayin da P0407 na iya haifar da matsalolin ƙasa ko ma kwamfuta mara kyau, tushen tushen yawanci shine EGR bawul ɗin kanta.

• Kuskuren EGR injin solenoid bawul
• Bawul ɗin EGR mara kyau
• Short circuit a cikin da'irar EGR
• Short circuit a cikin da'irar EGR
• Waya mara kyau daga sashin sarrafa injin zuwa tsarin EGR
• Na'urar sarrafa injin da ba daidai ba
• Gajeru zuwa ƙasa a cikin hanyoyin siginar EGR ko da'irar bincike
• Short circuit to voltage in the circuit circuit or signal circuits of the exhaust gas recirculation system
• Bad EGR bawul
• Matsalolin wayoyi mara kyau na PCM saboda ƙaƙƙarfan tashoshi

Matsaloli masu yuwu

Idan kuna da damar yin amfani da kayan aikin sikirin, zaku iya yin umarni da bawul ɗin EGR ON. Idan yana da amsa kuma martani yana nuna cewa bawul ɗin yana tafiya daidai, matsalar na iya zama na lokaci -lokaci. Lokaci -lokaci, a yanayin sanyi, danshi na iya daskarewa a cikin bawul ɗin, yana sa ya manne. Bayan dumama abin hawa, matsalar na iya bacewa. Carbon ko wasu tarkace na iya makalewa a cikin bawul wanda ke sa ya manne.

Idan bawul ɗin sake dawo da iskar gas ɗin bai amsa umurnin kayan aikin scan ba, cire haɗin haɗin haɗin haɗin maɗaurin gas ɗin. Juya maɓallin zuwa matsayi, injin yana kashe (KOEO). Yi amfani da voltmeter don bincika 5 V akan jagoran gwajin bawul EGR. Idan babu 5 volts, akwai wani ƙarfin lantarki kwata -kwata? Idan ƙarfin lantarki shine 12 volts, gyara gajarta zuwa ƙarfin lantarki akan da'irar 5 volt. Idan babu ƙarfin lantarki, haɗa fitilar gwaji zuwa ƙarfin baturi kuma duba waya mai nuni na 5. Idan fitilar gwajin ta haskaka, an rage gajeriyar hanyar 5 V zuwa ƙasa. Gyara idan ya cancanta. Idan fitilar gwajin ba ta haskaka ba, gwada da'irar mahaɗin 5 V don buɗewa. Gyara idan ya cancanta.

Idan babu wata matsala bayyananniya kuma babu bayanin ƙarfin lantarki na 5, PCM na iya zama kuskure, duk da haka akwai yuwuwar wasu lambobin su kasance. Idan akwai volts 5 a cikin da'irar mahaɗi, haɗa waya jumper 5 volt zuwa da'irar siginar EGR. Matsayin sake dawo da gas ɗin kayan aikin scan ɗin ya kamata yanzu ya karanta kashi 100. Idan ba ta haɗa fitilar gwajin da ƙarfin batirin ba, duba da'irar siginar sake maimaita gas ɗin. Idan yana kunne, to an rage gajeriyar siginar zuwa ƙasa. Gyara idan ya cancanta. Idan mai nuna alama bai haskaka ba, bincika don buɗewa a cikin siginar siginar EGR. Gyara idan ya cancanta.

Idan, bayan haɗa madaidaiciyar siginar 5 V zuwa da'irar siginar EGR, kayan aikin binciken yana nuna matsayin EGR na kashi 100 cikin ɗari, bincika rashin kwanciyar hankali akan tashoshi akan mai haɗin valve na EGR. Idan wayoyi suna da kyau, maye gurbin bawul ɗin EGR.

Lambobin EGR masu alaƙa: P0400, P0401, P0402, P0403, P0404, P0405, P0406, P0408, P0409

Kurakurai na yau da kullun lokacin gano lambar P0407

Abin ban mamaki, bawul ɗin EGR ba koyaushe shine dalilin lambar P0407 ba, kuma yana iya zama tsada don maye gurbinsa da gaggawa ba tare da ingantaccen ganewar asali ba. Ya kamata ku fara gwada mafi ƙarancin kayan haɗin gwiwa, kamar wayoyi da solenoid, kafin ku maye gurbin bawul ɗin da kanku. Tsaftacewa yana da arha fiye da maye gurbin.

YAYA MURNA KODE P0407?

Bawul ɗin EGR ɗin da ba daidai ba zai iya haɓaka hayaƙin abin hawan ku kuma yana shafar aikin sa, amma yawanci baya haifar da mummunan sakamako. Ya kamata ku duba nan ba dade ko ba dade, amma ƴan tafiye-tafiye masu sauri tare da P0407 ba za su yi mummunar lalacewa ba.

WANE GYARA ZA SU IYA GYARA CODE P0407?

Mafi yawan gyare-gyare na P0407 shine kamar haka:

• Share lambar tare da na'urar daukar hotan takardu kuma sanya ido kan lambar da za a mayar.
• Duba da gani na EGR bawul da haɗaɗɗen wayoyi da layukan vacuum don bayyanannun matsaloli.
• Tsaftace bawul ɗin EGR, share lambar kuma duba idan mai sarrafa yana aiki kuma.
• Duba wutar lantarki da ƙasa, gyara wayoyi idan ya cancanta.
• Bincika layin injin zuwa EGR da EGR solenoid - gyara idan ya cancanta.
• Kunna da kashe magnet ɗin don bincika ko yana aiki da kyau.
• Sauya bawul ɗin EGR.

KARIN BAYANI GAME DA LABARAN P0407

P0407 ba lambar injina ce ta firgita ba, amma kuma bai kamata a yi watsi da ita ba kamar yadda tsarin EGR ke taka muhimmiyar rawa wajen rage sawun motar mota. Yawancin bawuloli za su kasance da sauƙi a same su saboda yawanci suna kusa da nau'in injin ɗin da ake amfani da su don a iya sake zagayowar iskar gas. A kan wasu motocin da aka yi amfani da su, masu mallakar baya sun cire waɗannan tsarin don dacewa.

Yadda ake Gyara Lambar Injin P0407 a cikin Minti 3 [Hanyoyin DIY 2 / Kawai $ 4.53]

Kuna buƙatar ƙarin taimako tare da lambar ku ta p0407?

Idan har yanzu kuna buƙatar taimako tare da DTC P0407, 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.