P20E7 Ukucindezela komoya okuphezulu kakhulu ngomjovo we-ejenti yokunciphisa

P20E7 Ukucindezela komoya okuphezulu kakhulu ngomjovo we-ejenti yokunciphisa

Idatha ye-OBD-II DTC

Ukucindezela komoya kuphakeme kakhulu ngomjovo we-ejenti yokunciphisa

Kusho ukuthini lokhu?

Le Khodi Yezinkinga Zokuxilonga (i-DTC) iyikhodi yokudlulisela ejwayelekile futhi isebenza ezimotweni eziningi ze-OBD-II (1996 nezintsha). Lokhu kungafaka, kepha kungagcini lapho, iBMW, iMercedes-Benz, iDodge, iSprinter, njll. Ngaphandle kohlobo olujwayelekile, izinyathelo eziqondile zokulungisa zingahluka ngokuya ngomnyaka wemodeli, ukwakheka, imodeli nokudluliswa kokuhanjiswa.

Ikhodi egciniwe i-P20E7 isho ukuthi imodyuli yokulawula amandla we-powertrain (PCM) ithole ukuthi umfutho womoya womjovo onciphisayo uphezulu kakhulu.

Uhlelo lwe-catalyst lubhekele ukunciphisa (ikakhulukazi) konke ukukhishwa kwe-exhaust, yize ezinye izinhlelo zokusebenza nazo zifakwe isicupho se-NOx.

Izinhlelo ze-Exhaust Gas Recirculation (EGR) zithatha esinye isinyathelo ekwehliseni ukukhishwa kwe-NOx. Kodwa-ke, izinjini zikadizili zikanamuhla ezinkulu nezinamandla kakhulu azikwazi ukuhlangabezana nezindinganiso eziqinile ze-federal (US) zokukhishwa ngohlelo lwe-EGR nje, isihlungi se-particulate / catalytic converter, kanye noxhaka lwe-NOx. Ngalesi sizathu, kusungulwe izinhlelo ezikhethiwe zokunciphisa (i-SCR).

Izinhlelo ze-SCR zifaka ukwakheka okunganciphisi noma i-Diesel Exhaust Fluid (DEF) kumagesi aqeda phezulu enhla yesihlungi sezinhlayiyana, isicupho se-NOx kanye / noma isiguquli se-catalytic nge-reductant injection valve (solenoid). Umjovo onikezwe isikhathi se-DEF uphakamisa izinga lokushisa kwento yokuhlunga futhi uyivumele ukuthi isebenze kahle. Inweba impilo yensiza yezinto zokuhlunga futhi isiza ekwehliseni ukukhishwa kwamagesi ayingozi wokukhipha emkhathini. Uhlelo lonke lwe-SCR lulawulwa futhi luqashwe yi-PCM noma isilawuli esizimele (esisebenzisana ne-PCM). Kunoma ikuphi, isilawuli sihlola izinzwa ze-O2, NOx nezokushisa kwegesi (kanye nokunye okufakwayo) ukuthola isikhathi esifanele somjovo we-DEF (owehlisayo). Umjovo we-Precision DEF uyadingeka ukugcina ukushisa kwegesi okukhipha ngaphakathi kwemingcele eyamukelekayo nokwandisa ukuhlunga kokungcola.

Iphampu yokunciphisa / yokuvuselela isetshenziselwa ukucindezela i-DEF ohlelweni lokunciphisa uketshezi lokusetshenziswa lapho kudingeka. I-PCM ihlola amandla empompo okuhlinzeka ngokushintshashintsha okuqhubekayo namaphesenti wokulayisha. I-PCM ibuye ibheke inzwa eyodwa noma ngaphezulu yengcindezi ohlelweni lokuhlinzeka ngokunciphisa ukuthola ukuthi kukhona yini ukuvuza kuhlelo.

Uma i-PCM ithola umfutho womoya womjovo ophezulu ngokungavamile, ikhodi engu-P20E7 izogcinwa futhi isibani senkomba esingasebenzi kahle (MIL) singase sivuleke. Ukukhanyisa kwe-MIL kungase kudinge imijikelezo eminingi yokuthungela - uma kwenzeka kwehluleka.

Buyini ubunzima bale DTC?

Ikhodi egciniwe ye-P20E7 kufanele iphathwe ngokungathi sína futhi ilungiswe ngokushesha okukhulu. Uhlelo lwe-SCR lungakhubazeka ngenxa yalokhu. Ukulimala kweCatalyst kungenzeka uma izimo ezibe nomthelela ekuphikeleni kwekhodi zingalungiswa ngesikhathi esifanele.

Yiziphi ezinye zezimpawu zekhodi?

Izimpawu zekhodi yenkinga ye-P20E7 zingafaka:

• Ukwehla kwamandla kaphethiloli
• Intuthu emnyama eyeqile ephuma ekuqothulweni kwezimoto
• Ukunciphisa ukusebenza kwenjini
• Amanye amakhodi ahlobene ne-SCR

Yiziphi ezinye zezimbangela ezivamile zekhodi?

Izizathu zale khodi zingabandakanya:

• Ukucindezela komoya kuphakeme kakhulu ngomjovo we-ejenti yokunciphisa
• Inzwa yokunciphisa ijenti yomoya we-ejenti enephutha
• Isifunda esivulekile noma esifushane kuketanga ohlelweni lwenzwa yomfutho womoya yomjovo we-reductant
• Isilawuli se-SCR / PCM esingalungile noma iphutha lohlelo

Yiziphi ezinye zezinyathelo ze-P20E7 zokuxazulula inkinga?

Qiniseka ukuthi uhlelo lokunciphisa / lokuvuselela alulahli ingcindezi (yangaphakathi noma yangaphandle). Vula ipompo ukuze wakhe ingcindezi bese uhlola uhlelo ukuthi akukho ukuvuza kwangaphandle yini. Sebenzisa isihloli sengcindezi kaphethiloli ukuqapha mathupha ingcindezi ohlelweni olunciphisayo. Bheka ipompo yokuphakelayo nombhobho wokuvuza. Uma kutholakala ukuvuza (kwangaphakathi noma kwangaphandle), kufanele kulungiswe ngaphambi kokuqhubeka nokuxilongwa.

Ukuthola ikhodi ye-P20E7 kudinga isithwebuli sokuxilonga, i-digital volt / ohmmeter (i-DVOM), nomthombo wokuxilonga oqondene nemoto.

Ungasebenzisa umthombo wolwazi lwemoto yakho ukuthola i-Technical Service Bulletin (TSB) efana nonyaka wemoto yakho, ukwakheka kwayo kanye nemodeli yakho; kanye nokususwa kwenjini, amakhodi agciniwe nezimpawu ezitholakele. Uma uyithola, ingahlinzeka ngemininingwane ewusizo yokuxilonga.

Sebenzisa isithwebuli (esixhunywe kusokhethi yokuxilonga yemoto) ukuthola wonke amakhodi agciniwe kanye nedatha yozimele efriziwe. Kunconywa ukuthi ubhale phansi lolu lwazi ngaphambi kokususa amakhodi bese uhlola ukushayela imoto kuze kube yilapho i-PCM ingena kumodi elungele noma ikhodi isuliwe.

Uma i-PCM ingena kumodi elungile ngalesi sikhathi, ikhodi iphakathi futhi ingaba nzima kakhulu ukuxilonga. Kulokhu, izimo ezibe nomthelela ekugcineni ikhodi zingadinga ukuba zimbi kakhulu ngaphambi kokuba kutholakale ukuxilongwa okunembile.

Uma ikhodi isethwa kabusha ngokushesha, isinyathelo esilandelayo sokuxilonga sizodinga ukuthi useshe umthombo wolwazi lwemoto yakho ukuthola imidwebo yama-block diagnostic, ama-pinout, ama-faceplates okuxhuma, nezinqubo / imininingwane yokuhlolwa kwengxenye.

Isinyathelo 1

Sebenzisa i-DVOM ukuhlola izinzwa zengcindezi zohlelo lokujova olunciphisayo ngokuya ngemininingwane yomkhiqizi. Izinto ezihluleka ukuhlolwa ngaphakathi kwemingcele ephezulu evunyelwe kufanele zithathwe njengezinephutha.

Isinyathelo 2

Uma ingcindezi yomjovo we-reductant ingaphakathi kokucacisiwe, ikhodi ye-P20E7 iyaqhubeka futhi inzwa okukhulunywa ngayo iyasebenza, sebenzisa i-DVOM ukuhlola amasekethe wokufaka nawokukhipha phakathi kwezinzwa ne-PCM / SCR. Nqamula bonke abalawuli ngaphambi kokusebenzisa i-DVOM ukuhlola.

• Amakhodi ezinzwa zemibhobho anciphise imvamisa ahlotshaniswa namaphampu okuphakelayo avuza ngaphakathi.

Izingxoxo ezihlobene ze-DTC

• Okwamanje azikho izihloko ezihlobene ezinkundleni zethu. Thumela isihloko esisha esithangamini manje.

Udinga usizo olwengeziwe ngekhodi le-P20E7?

Uma usadinga usizo nge-DTC P20E7, thumela umbuzo wakho 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.