P04A2 Babban siginar sigar sarrafa bututun iskar gas

P04A2 Babban siginar sigar sarrafa bututun iskar gas

Bayanan Bayani na OBD-II

Ƙarfin iskar gas mai sarrafa bawul "B" babba

Mene ne wannan yake nufi?

Wannan Deric Genication Transmission / Engine DTC galibi ya shafi injunan diesel da suka haɗa da, amma ba'a iyakance su ba, wasu Ford Powerstroke, Dodge Cummins, Mercedes, Nissan, da VW motocin.

Hakanan za'a iya amfani da wannan lambar ga manyan motocin da ke sanye da injunan dizal da birki na sharar dillali.

Ana sanya bawul ɗin a cikin rafi mai ɗorewa ƙarƙashin ƙasa na iskar gas mai yawa don samar da zafi a cikin yanayin matsin baya a cikin fitarwa. Ana iya amfani da wannan zafin da / ko matsin lamba don dumama yayin fara sanyi. Hakanan ana iya amfani da shi don magance matsin lamba a cikin silinda da ke fitowa daga injin silinda injin daga iskar gas, ta yadda zai rage injin da abin hawa tare da shi. Wannan yana da amfani musamman lokacin towing.

Wannan lambar tana nuna cewa siginar shigarwa daga firikwensin matsin lamba ba ta dace da matsin lamba mai yawa ko matsin lamba na yanayi yayin tuƙin al'ada. Wannan na iya zama lahani na inji ko lahani na lantarki, dangane da mai kera abin hawa.

Matakan warware matsala na iya bambanta dangane da mai ƙera, nau'in mai sarrafa matsin lamba na baya da launuka na wayoyi zuwa solenoid mai sarrafawa. Tuntuɓi takamaiman littafin gyaran abin hawa don sanin wane bawul "B" yake don aikace -aikacen ku na musamman.

da bayyanar cututtuka

Alamomin lambar injin P04A2 na iya haɗawa da:

• Lambar Alamar Rashin Aiki (MIL) ta haskaka
• Rashin iko
• Babu injin birki
• Tsawon lokaci fiye da yadda aka saba don injin sanyi

Dalili mai yiwuwa P04A2

Yawanci dalilin shigar da wannan lambar shine:

• Makale bawul baya matsa lamba bawul
• Ƙarancin shaye -shaye
• Buɗe a cikin da'irar ƙasa zuwa firikwensin matsin lamba na gas
• Buɗe a cikin siginar sigina tsakanin firikwensin matsa lamba da PCM
• Short circuit on voltage in circuit signal of the exhaust gas pressure sensor
• Na'urar firikwensin matsa lamba mara kyau - gajeriyar ciki zuwa ƙarfin lantarki
• Clogged shaye gas matsin firikwensin bututu
• Ana iya ɗaukar nauyin turbocharger.
• PCM na iya faduwa (da wuya)

Hanyoyin bincike da gyara

Kyakkyawan farawa shine koyaushe neman Bulletin Sabis na Fasaha (TSB) don takamaiman abin hawa. Mai ƙera abin hawa na iya samun ƙwaƙwalwar ƙwaƙwalwar filasha / sake fasalin PCM don gyara wannan matsalar, kuma yana da kyau a bincika kafin ku sami kanku kuna tafiya mai nisa / kuskure. PCM = Module Control Power.

Sannan nemo firikwensin matsin lamba na "B" akan takamaiman abin hawa. Da zarar an gano, duba abubuwan gani da wayoyi da gani. Nemo ɓarna, ɓarna, wayoyi da aka fallasa, alamomin ƙonawa, ko narkakken filastik. Cire haɗin haɗin kuma a hankali bincika tashoshi (sassan ƙarfe) a cikin masu haɗin. Duba idan sun yi kama da tsatsa, ƙonewa, ko yuwuwar kore idan aka kwatanta da launin ƙarfe da aka saba gani da alama ana iya gani. Idan ana buƙatar tsaftacewa ta ƙarshe, zaku iya siyan mai tsabtace lambar wutar lantarki a kowane shagon sassa. Idan wannan ba zai yiwu ba, sami 91% shafa barasa da goga mai goga mai filastik don tsabtace su. Sannan bari su bushe da iska, ɗauki sinadarin silicone na dielectric (irin kayan da suke amfani da su don masu riƙe da kwan fitila da wayoyi masu walƙiya) kuma sanya wurin da tashoshin ke tuntuɓar.

Hakanan, idan an sanye da abin hawan ku, cire bututun firikwensin wanda ke haɗa firikwensin matsin lamba na baya zuwa mai yawa. Yi ƙoƙarin karya ta wannan. Idan wannan ba zai yiwu ba, wannan ma wataƙila dalilin wannan lambar ta bayyana.

Idan kuna da kayan aikin sikirin, share lambobin matsalar bincike daga ƙwaƙwalwar ajiya kuma duba idan lambar ta dawo. Idan wannan ba haka bane, to akwai yuwuwar matsalar haɗin gwiwa.

Idan lambar ta dawo, kuna buƙatar bincika cewa haɓaka turbocharger yana aiki yadda yakamata. Kuna buƙatar kayan aikin dubawa wanda zai iya karanta matsin lamba na turbocharger. Kuna iya buƙatar saka idanu da matsin lamba mai yawa saboda wannan zai ba da wannan bayanin. Kula da matsin lamba tare da maɓallin a kunne, amma tare da kashe injin. Sannan fara injin, tuƙa abin hawa cikin aminci, sannan kuma a ɗan hanzarta injin ɗin zuwa matattara mai buɗewa, tabbatar da saurin injin bai wuce 2500-3000 rpm ba. Ya kamata ku lura da canji na aƙalla 18 psi, mai yiwuwa ya dogara da mai kera abin hawa da shekarar ƙirar.

Idan wannan gwajin ya wuce ko ba ku iya duba haɓaka turbocharger ba, za mu buƙaci bincika firikwensin da da'irori masu alaƙa. Yawancin lokaci akwai wayoyi 3 akan firikwensin matsa lamba.

Cire haɗin kayan doki daga firikwensin matsa lamba. Yi amfani da ohmmeter na dijital na dijital (DVOM) don bincika kewayon wutar lantarki na 5V yana zuwa firikwensin don tabbatar da cewa yana kan (ja waya zuwa da'irar samar da wutar lantarki na 5V, baƙar fata zuwa ƙasa mai kyau). Idan firikwensin shine 12 volts lokacin da yakamata ya zama 5 volts, gyara wayoyi daga PCM zuwa firikwensin don gajere zuwa 12 volts ko wataƙila PCM mara kyau.

Idan wannan al'ada ce, tare da DVOM, tabbatar cewa kuna da 5V akan keɓaɓɓen siginar siginar matsa lamba (jan waya zuwa keɓaɓɓen siginar siginar, waya baƙi zuwa ƙasa mai kyau). Idan babu 5 volts akan firikwensin, ko kuma idan kun ga 12 volts akan firikwensin, gyara wayoyi daga PCM zuwa firikwensin, ko kuma, wataƙila PCM mara kyau.

Idan na al'ada ne, bincika cewa firikwensin matsin lamba ya yi ƙasa sosai. Haɗa fitilar gwaji zuwa tabbataccen batirin 12 V (ja m) kuma taɓa ɗayan ƙarshen fitilar gwajin zuwa da'irar ƙasa wanda ke kaiwa zuwa filin haska matattarar iskar gas. Idan fitilar gwajin ba ta haskaka ba, yana nuna alamar da'irar mara kyau. Idan ta kunna, girgiza kayan aikin wayoyin da ke zuwa firikwensin matsin lamba don ganin ko fitilar gwajin tana ƙiftawa, yana nuna haɗin haɗin kai.

Idan duk gwaje -gwajen da suka gabata sun wuce kuma kuna ci gaba da samun lambar P04A2, da alama zai iya nuna firikwensin matsin lamba mai ɓarna, kodayake murfin murfin murfin rufewa ya makale ko PCM da ya gaza ba za a iya yanke hukunci ba har sai an maye gurbin firikwensin.

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 p04A2?

Idan har yanzu kuna buƙatar taimako tare da DTC P04A2, 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.