I-P0490 Exhaust Gas Recirculation (EGR) "A" Control Circuit High

Ikhodi Yenkinga ye-OBD-II - P0490 - Ishidi Ledatha

Exhaust negesi Recirculation Control Circuit "A" High

Isho ukuthini ikhodi yenkinga P0490?

Le yikhodi yokudlulisela ejwayelekile okusho ukuthi ihlanganisa konke ukwenziwa / amamodeli kusuka ngo-1996 kuye phambili. Noma kunjalo, izinyathelo ezithile zokuxazulula inkinga zingahluka kusuka emotweni kuya emotweni.

Lawa makhodi enkinga yenjini asho ukungasebenzi kahle kwesistimu yokukhipha igesi ephumayo. Ngokuqondile, isici sikagesi. I-exhaust gas recirculation system iyingxenye ebalulekile yesistimu yokukhipha imoto, umsebenzi wawo ukuvimbela ukwakheka kwe-NOx eyingozi (i-nitrogen oxides) kumasilinda.

I-EGR ilawulwa yikhompyutha yokuphathwa kwenjini. Ikhompyutha ivula noma ivale ukuphindaphinda kwegesi yokukhipha ngokuya ngomthwalo, isivinini kanye namazinga okushisa ukuze kugcinwe izinga lokushisa lekhanda lesilinda elifanele. Kunezintambo ezimbili kwi-solenoid kagesi ku-EGR esetshenziswa yikhompyutha ukuyenza isebenze. I-potentiometer nayo itholakala ku-exhaust gas recirculation solenoid, ekhombisa isikhundla senduku ye-EGR (indlela yokusebenza evula futhi ivale umgudu).

Lokhu kufana kakhulu nokufiphaza amalambu asekhaya lakho. Uma uvula iswishi, ukukhanya kuyakhanya njengoba amandla kagesi enyuka. Ikhompyutha yakho yenjini ayiluboni ushintsho lwamandla lapho izama ukuvula noma ukuvala i-EGR, ekhombisa ukuthi ibhajwe endaweni eyodwa. I-P0490 Exhaust Gas Recirculation Control Circuit A isho ukuthi akukho zinguquko zamandla aphezulu, okukhombisa ukuthi i-EGR iyavula noma iyavala. I-P0489 iyafana ngokuyisisekelo, kepha isho ukuthi isekethe liphansi, hhayi eliphezulu.

Uphethiloli ongenawo uvame ukwakha i-NOx emazingeni okushisa we-cylinder eyedlulele. Uhlelo lwe-EGR luqondisa inani elilawulwayo lokukhipha igesi emuva kokuphindaphindwayo kokudla. Inhloso ukunciphisa ingxube kaphethiloli engenayo ngokwanele ukuletha ukushisa kwekhanda lesilinda ngaphansi kwalapho kwakhiwa khona i-NOx.

Ukusebenza kwesistimu ye-EGR ibalulekile ngenxa yezizathu eziningi kunokuvimbela i-NOx - inikeza isikhathi esinembe kakhudlwana samandla engeziwe ngaphandle kokungqongqoza, kanye nengxube ethambile kaphethiloli yomnotho ongcono kaphethiloli.

Izimpawu

Izimpawu zizohluka ngokuya ngesikhundla senaliti ye-EGR ngesikhathi sokuhluleka. Ezimweni eziningi, ikhodi P0490 ayandulelwa yinoma yiziphi izimpawu. Umnikazi wemoto izokwaziswa ngenkinga isibani se-Check Engine esiza. Nokho, ezinye izimoto zingase zihambe ngendlela engaqondakali noma kube nzima ukuziqalisa. Abanikazi bezimoto bangakwazi kukhona ukwehla kwamandla noma ukwehla kokusetshenziswa kukaphethiloli.

• Injini egijimayo kakhulu
• Isibani senjini yokuhlola sivuliwe
• Ukuwa komnotho kaphethiloli
• Ukwehla kwamandla
• Akunasiqalo noma kunzima kakhulu ukuqala kulandelwe i-idle ebukhali

Izimbangela ezingenzeka zeKhodi P0490

Imvamisa, i-EGR evaliwe noma isiteshi se-DPFE yisona esinecala ngekhodi ye-P0490.

Kungase futhi kube nokufushane kugesi webhethri noma ukungasebenzi kahle kwe-ECU okubangela le khodi.

Izizathu zale DTC zingafaka:

• Isifunda esifushane ukuya phansi
• Mfushane kumandla kagesi webhethri
• Isixhumi esibi nezikhonkwane ezikhishwe ngaphandle
• Ukugqwala kusixhumi
• Inaliti ye-EGR engcolile
• I-solenoid yokubuyisela kabusha igesi engalungile
• I-EGR embi
• I-ECU noma ikhompyutha enamaphutha

Izinqubo zokulungisa

Uma imoto yakho ihambe ngaphansi kwamamayela ayi-100,000 ayi-80, kunconywa ukuthi ubuyekeze iwaranti yakho. Izimoto eziningi ziphatha iwaranti yokulawula ukukhishwa kwamamayela ayi-100,000 noma i-XNUMX. Okwesibili, ngena ku-inthanethi bese uhlola wonke ama-TSB (Ama-Bulletin Wensizakalo Yezobuchwepheshe) ahlobene nala makhodi nokuthi angawalungisa kanjani.

Ukwenza lezi zinqubo zokuxilonga, uzodinga amathuluzi alandelayo:

• I-Volt / Ohmmeter
• Umdwebo wokuxhuma wokukhipha igesi
• Ijuma
• Iziqeshana ezimbili zephepha noma izinaliti zokuthunga

Vula i-hood bese uqala injini. Uma injini ingasebenzi kahle, susa ipulagi ohlelweni lwe-EGR. Uma injini ibushelelezi, iphini liyanamathela ku-EGR. Misa injini bese ushintsha i-EGR.

Bheka isixhumi sezintambo ku-EGR. Kunezintambo ezi-5, izintambo ezimbili zangaphandle ziphakela i-voltage yebhethri nomhlabathi. Izintambo ezintathu ezimaphakathi ziyi-potentiometer ebonisa kukhompuyutha inani lokugeleza kwe-EGR. Itheminali emaphakathi iyitheminali eyinkomba engu-5V.

Hlolisisa isixhumi ngezikhonkwane ezikhishiwe, ukugqwala, noma izikhonkwane ezigoqiwe. Hlola i-harness wiring ngokucophelela nganoma yikuphi ukwahlukanisa noma amasekhethi amafushane. Bheka izintambo ezivulekile ezingavula isekethe.

• Sebenzisa i-voltmeter ukuhlola noma yikuphi ukuhola okubulalayo ngocingo olubomvu bese ugaya ucingo olumnyama. Vula ukhiye bese uthola ama-volts ayi-12 nawo womabili amatheminali okuphela.
• Uma i-voltage ingakhonjisiwe, khona-ke kukhona ucingo oluvulekile phakathi kohlelo lwe-EGR nebhasi lokuthungela. Uma ama-volts ayi-12 akhonjiswa ohlangothini olulodwa kuphela, isistimu ye-EGR inesifunda esivulekile sangaphakathi. Faka esikhundleni se-EGR.
• Nqamula isixhumi ohlelweni lokukhipha igesi qeda bese ucisha ukhiye nenjini, uhlole amandla oxhumana nabo bangaphandle bangaphandle. Bhala phansi ukuthi iyiphi enama-volts ayi-12 bese ushintsha isixhumi.
• Beka isiqeshana sephepha ku-terminal lug ebinganikwe amandla, lesi yisiga somhlabathi. Namathisela i-jumper esiqeshini se-paperclip. Phansi kweqa. "Ukuchofoza" kuzozwakala lapho kwenziwa i-EGR. Nqamula intambo yomhlabathi bese uqala injini. Phinda ucindezele ucingo futhi kulokhu injini izosebenza kanzima lapho i-EGR inikwa amandla futhi ithambile lapho umhlaba ususwa.
• Uma uhlelo lwe-EGR lusebenza futhi injini iqala ukusebenza ngezikhathi ezithile, uhlelo lwe-EGR luhlelekile, inkinga ingugesi. Uma kungenjalo, misa injini bese ushintsha i-EGR.
• Hlola indawo yokugcina yesikhungo sokuxhuma igesi. Vula ukhiye. Uma ikhompyutha isebenza kahle, kukhonjiswa ama-volts angu-5.0. Vala ukhiye.
• Bheka umdwebo wiring we-EGR bese uthola i-EGR voltage reference terminal kukhompyutha. Faka iphini noma isiqeshana sephepha kusixhumi esikukhompuyutha kuleli qophelo ukuhlola oxhumana naye emuva.
• Vula ukhiye. Uma ama-volts ama-5 akhona, ikhompyutha ilungile futhi inkinga ikuzintambo zokubophela uhlelo lwe-EGR. Uma kungekho voltage, khona-ke ikhompyutha ayilungile.

Iseluleko sokulungisa isekethe yokubuyisela kabusha igesi ngaphandle kokufaka ikhompyutha: Bheka umdwebo wiring bese uthola indawo yokugcina amandla okushisa okushisa okupholile. Bheka lesi siginali ngokhiye ofakiwe. Uma u-5 volt Ref. I-voltage ikhona, cisha ukhiye bese umaka amatheminali amabili osizo asetshenziswe kulezi zivivinyo. Khipha isixhumi sekhompiyutha, faka i-jumper wire phakathi kwalezi zikhonkwane ezimbili. Faka isixhumi futhi uhlelo lwe-EGR luzosebenza ngokujwayelekile ngaphandle kokufaka ikhompyutha esikhundleni.

Amaphutha Avamile Lapho Uhlonza Ikhodi P0490

Iphutha elivame kakhulu lapho uxilonga imbangela yekhodi P0490 ukuthi shintsha ngokuzenzakalelayo i-valve ye-EGR. Le ngxenye ayiqhekeki kaningi njengamanye amaningi. izingxenye zesistimu ye-EGR.

Ibucayi kangakanani ikhodi ye-P0490?

Ngoba ukunqwabelana kwe-NOx kumasilinda emoto kungaba yingozi kakhulu, ukuba khona kwe Ikhodi P0490 ibucayi kakhulu. I-EGR esebenza kahle nayo iyingxenye ebalulekile ukuze uthole ukonga okuhle kukaphethiloli. Lokhu kulungiswa kufanele kuxazululwe ngokushesha.

Yiziphi izilungiso ezingalungisa ikhodi P0490?

Ukuqinisekisa ukuthi izingxenye zikagesi azinasibopho sokugcina

Ikhodi P0490, umakhenikha unezinketho eziningi zokulungisa:

• Sebenzisa isithwebuli ukuze ugade umsebenzi we-EGR futhi uqhathanise ulwazi nolwazi imininingwane yomkhiqizi.

• Hlola futhi ulungise i-valve ye-EGR , lawula i-solenoid, inzwa noma inzwa ye-DPFE. okudingekayo.

• Nqamula umugqa we-vacuum futhi usebenzise i-vacuum ngesandla ku-valve ye-EGR ukuze uyibone ukusebenza.

• Khipha i-valve ye-EGR futhi uyihlanze ekuvinjweni.
• Qiniseka ukuthi ikhompuyutha isebenza kahle futhi uyishintshe uma kunesidingo.
• Hlola zonke izixhumi nezintambo ze-PCM futhi ulungise noma ushintshe njengoba kudingeka.

Ngemuva kokulungiswa ngakunye okunjalo, ikhodi kufanele isulwe futhi uhlelo kufanele lube kuhlolwe kabusha. Uma ukulungiswa okuningi kuzomakwa ohlwini, kuzoba lula uchwepheshe ukuze anciphise imbangela yangempela yekhodi P0490.

Amazwana engeziwe okufanele acatshangelwe mayelana nekhodi P0490

Uma ikhodi P0490 itholakala emotweni enamamayela angaphansi kuka-100, hlola Iwaranti Yomkhiqizi noma Iwaranti Yomdayisi. Isistimu ye-EGR ivamise ukuvala ngaphansi kwewaranti evamile, futhi izindleko zokushintshwa noma zokukhanda zingakhava isiqinisekiso.

P0490 ✅ IZIMPAWU NESIXAZULULO ESIYILUNGILE ✅ - Ikhodi Yephutha ye-OBD2

Udinga usizo olwengeziwe ngekhodi le-p0490?

Uma usadinga usizo nge-DTC P0490, thumela umbuzo kumazwana angezansi kwalesi sihloko.

QAPHELA. Lolu lwazi lunikezwa ngenhloso yokwaziswa kuphela. Akuhloselwe ukuthi isetshenziswe njengesincomo sokulungisa futhi asinacala nganoma yisiphi isenzo osithathayo kunoma iyiphi imoto. Yonke imininingwane ekulesi siza ivikelwe yi-copyright.