Uhlelo lweP200F Catalyst Over Temperature Bank 2

Uhlelo lweP200F Catalyst Over Temperature Bank 2

Idatha ye-OBD-II DTC

Uhlelo lwe-Superheat catalyst, ibhange 2

Kusho ukuthini lokhu?

Le Khodi Yezinkinga Zokuxilonga (i-DTC) iyikhodi yokudlulisela ejwayelekile futhi isebenza ezimotweni eziningi ze-OBD-II (1996 nangaphezulu). Lokhu kungafaka, kodwa kungagcini lapho, iFord, iHino, iMercedes Benz, i-VW, njll. Naphezu kohlobo olujwayelekile, izinyathelo eziqondile zokulungisa zingahluka ngokuya ngonyaka oyimodeli, ukwakheka, ukumodela nokumiswa kokudluliswa.

Uma ikhodi engu-P200F igcinwe emotweni yakho ehlome ngedizili ye-OBD-II, kusho ukuthi imojula yokulawula i-powertrain (PCM) ithole izinga lokushisa elidlulele lesistimu ye-catalyst yasebhange yesibili. I-Bank 2 iyiqembu lenjini elingenayo isilinda inombolo eyodwa.

I-catalytic system emotweni yesimanje enenjini kadizili esebenzisa uphethiloli ongavumelani nemvelo yakhelwe ukunciphisa amagesi akhipha umoya ayingozi ngaphambi kokuba angene emkhathini. I-exhaust ekhishwayo ihlanganisa ikakhulukazi ama-hydrocarbon (HC), i-carbon monoxide (CO), i-nitrogen oxide (NOx) kanye ne-particle (soot - ezinjinini zikadizili). Isiguquli se-catalytic empeleni siyisihlungi esikhulu (esinemeshi emihle) esingamelana namazinga okushisa adlulele. Amagesi e-exhaust aphuma enjinini adlula kuyo, futhi ukukhishwa okuyingozi kubanjwe isici sokuhlunga i-platinum. Amazinga okushisa adlulele akhiqizwa ngaphakathi kwesiguquli se-catalytic asiza ukushisa ukukhishwa okuyingozi.

Uhlelo lwe-catalyst lubhekele ukunciphisa (ikakhulukazi) konke okunye 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 nge-EGR kuphela, isiguquli sokuguqula kanye nogibe lwe-NOx. Ngalesi sizathu, kusungulwe izinhlelo ezikhethiwe zokunciphisa (i-SCR).

Amasistimu we-SCR ajove i-Diesel Exhaust Fluid (DEF) kumagesi aqeda phezulu enhla yesihlungi se-particulate kanye / noma isiguquli se-catalytic. Umjovo obalwe ngokunembile we-DEF uphakamisa izinga lokushisa kwento yokuhlunga futhi uyivumele ukuthi isebenze kahle. Lokhu kunweba impilo yokusebenza kwento yokuhlunga futhi kusiza ekwehliseni ukukhishwa kwamagesi ayingozi okukhipha emkhathini.

Izinzwa zokushisa kwegesi ephumayo zifakwa ngaphambi nangemva kwe-catalyst ukuze kuqashwe izinga lokushisa nokusebenza kahle kwayo. Lonke uhlelo lwe-SCS lugadwa futhi lulawulwa yi-PCM noma isilawuli esizimele sodwa (esisebenzisana ne-PCM). Kunoma ikuphi, isilawuli siqapha i-O2, NOx nezinzwa zokushisa zegesi exhaust (kanye nokunye okokufaka) ukuze sinqume isikhathi esifanele somjovo we-DEF. Umjovo we-Precision DEF ubalulekile ukuze ugcine izinga lokushisa lesisi esikhipha umoya ngaphakathi kwemingcele eyamukelekayo kanye nokuthuthukisa ukuhluzwa kwezinto ezingcolisayo.

Uma i-PCM ithola izinga lokushisa eleqile lesistimu ye-catalytic (kumugqa wesibili wezinjini), ikhodi ye-P200F izogcinwa futhi isibani senkomba yokungasebenzi singakhanya.

Ukusikwa kwesihlungi esijwayelekile se-particulate:

Buyini ubunzima bale DTC?

Noma imaphi amakhodi esistimu ye-catalytic agcinwe angaba izandulela zesistimu yokukhipha umoya evalekile. Ikhodi ye-P200F egciniwe kufanele ithathwe njengebucayi futhi kufanele kusetshenzwe ngayo ngokushesha okukhulu. Umonakalo we-Catalyst ungenzeka uma izimo ezifake isandla ekuphikeleleni kwekhodi zingalungiswa ngesikhathi.

Yiziphi ezinye zezimpawu zekhodi?

Izimpawu zekhodi yenkinga ye-P200F zingafaka:

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

Yiziphi ezinye zezimbangela ezivamile zekhodi?

Izizathu zale khodi zingabandakanya:

• Uhlelo lwe-SCR oluphukile
• Injector ye-SCR enamaphutha
• Uketshezi olungalungile noma olunganele lwe-DEF
• Inzwa yokushisa kwegesi engasebenzi kahle
• Isilawuli se-SCR esingalungile noma iphutha lohlelo
• Khipha ukuvuza phambi kwe-catalyst
• Ukufakwa kwezinto ezingezona ezasekuqaleni noma zokusebenza okuphezulu

Yiziphi ezinye zezinyathelo zokuxazulula inkinga i-P200F?

Uma amakhodi e-SCR nawo egciniwe, kufanele asulwe ngaphambi kokuzama ukuxilonga i-P200F egciniwe. Ukuvuza kwe-exhaust phambi kwesiguquli se-catalytic kufanele kulungiswe ngaphambi kokuzama ukuxilonga lolu hlobo lwekhodi.

Ukuze uhlole ikhodi ye-P200F, uzodinga ukufinyelela kusikena sokuxilonga, i-digital volt/ohmmeter (DVOM), ithemometha ye-infrared ene-laser pointer, kanye nomthombo wolwazi lokuxilonga oluqondene nemoto.

Uma ungathola i-Technical Service Bulletin (TSB) ehambelana nonyaka wokwenza, yenza nemodeli yemoto; kanye nokufuduswa kwenjini, ikhodi / amakhodi agciniwe kanye nezimpawu ezitholakele, kunganikeza imininingwane ewusizo yokuxilonga.

Udinga ukuqala ukuxilongwa ngokuhlola ngokubonakalayo uhlelo lokujova lwe-SCR, qeda izinzwa zokushisa kwegesi, izinzwa ze-NOx, namahhanisi we-oxygen sensor nezixhumi (02). Izintambo ezishisiwe noma ezilimele kanye / noma izixhumi kufanele zilungiswe noma zifakwe esikhundleni ngaphambi kokuqhubeka.

Bese uxhuma isithwebuli kusokhethi yokuxilonga imoto bese ubuyisa wonke amakhodi agciniwe kanye nemininingwane yoqweqwe oluhambisanayo. Bhala lolu lwazi ngaphambi kokusula amakhodi bese uhlola ukushayela imoto kuze kube yilapho i-PCM ingena kumodi elungele noma ikhodi isethwe kabusha.

Ikhodi iphakathi futhi ingaba nzima kakhulu ukuxilonga (njengamanje) uma i-PCM ingena kumodi elungele. Kulokhu, izimo ezibe nomthelela ekugcineni ikhodi zingadinga ukuba zimbi kakhulu ngaphambi kokuba kutholakale ukuxilongwa okunembile.

Uma ikhodi isethwa kabusha, sesha umthombo wolwazi lwemoto yakho ukuthola imidwebo yama-diagnostic block, ama-pinouts wokuxhuma, ukubukwa kobuso bokuxhuma, nezinqubo zokuhlolwa kwengxenye nezinto ezithile. Uzodinga lolu lwazi ukuqedela isinyathelo esilandelayo ekuhlolweni kwakho.

Sebenzisa i-thermometer ye-infrared ukunquma ukushisa kwangempela ngaphambi nangemva kokuvuselelwa. Bheka ukugeleza kwedatha yeskena ukuze uqhathanise imiphumela yakho yangempela nemininingwane esikrinini sokubonisa idatha yeskena. Futhi qhathanisa idatha kusuka kuzinzwa zokushisa zegesi phakathi kwemigqa yezinjini. Uma kutholakala ukungafani kokushisa kwegesi, hlola izinzwa ezihambisanayo usebenzisa i-DVOM. Izinzwa ezingahlangabezani nezincazelo zomkhiqizi kufanele zithathwe njengezinephutha.

Uma zonke izinzwa namasekethe zisebenza kahle, sola ukuthi i-elemental catalytic ayisebenzi kahle noma ukuthi uhlelo lwe-SCR alusasebenzi.

• Qinisekisa ukuthi idamu le-DEF ligcwele uketshezi olulungile futhi uhlelo lwe-SCR lusebenza kahle.

Izingxoxo ezihlobene ze-DTC

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

Udinga usizo olwengeziwe ngekhodi le-P200F?

Uma usadinga usizo ngekhodi le-P200F, 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.