I-P20DD Exhaust Gas Aftertreatment Fuel Pressure Inzwa Yesekethe

I-P20DD Exhaust Gas Aftertreatment Fuel Pressure Inzwa Yesekethe

Idatha ye-OBD-II DTC

Exhaust negesi Aftertreatment Okokhelekayo Pressure Inzwa Circuit

Kusho ukuthini lokhu?

Le Khodi Yezinkinga Zokuxilonga (i-DTC) yikhodi yokudlulisela ejwayelekile futhi isebenza ezimotweni eziningi ze-OBD-II (1996 nezintsha). Lokhu kungafaka, kepha kungagcini lapho, iMercedes Benz, iMitsubishi, njll. Naphezu kohlobo olujwayelekile, izinyathelo eziqondile zokulungisa zingahluka ngokuya ngohlobo lwemodeli, ukwakheka, imodeli nokudluliswa kokuhanjiswa.

Ikhodi ye-P20DD egcinwe emotweni yakho kadizili isho ukuthi i-powertrain control module (PCM) ithole i-voltage engajwayelekile kusekethe yangemva kokwelapha i-fuel pressure pressure sensor.

Uhlelo lwe-Exhaust Aftertreatment System (olubizwa nangokuthi i-Selective Catalyst Recovery System) lusetshenziselwa ukuthuthukisa amakhono wohlelo lwegesi lokukhipha amandla. Ingaqukatha eyodwa noma eziningi zalezi zinto; idizili ye-oxidation catalyst, i-particulate filter, ukunciphisa uhlelo lokujova i-ejenti, i-ammonia slip catalyst ne-nitrogen oxide (NOx) isicupho.

Uhlelo lokujova olunciphisayo luqukethe okungenani umjovo owodwa wokunciphisa, ithangi lesitoreji elinciphisayo, kanye nolayini abanciphisa umfutho ophakeme. Iphampu ye-elekthronikhi ephezulu ivame ukutholakala ethangini noma kulayini wokuhambisa uphethiloli. Inzwa yengcindezi ye-EAS ivumela isilawuli ukuthi siqaphele ukucindezela kohlelo lapho iphampu yokuphakelayo ivuliwe. Kukulesi sikhathi lapho kutholakale khona ukungasebenzi kahle ngenkathi kugcinwa ikhodi ye-P20DD.

Phakathi kwezinye izinto, amasistimu e-exhaust gas aftertreatment systems (EAS) anesibopho sokujova i-reductant / diesel engine fluid (DEF) enhlanganisweni yamagesi e-exhaust angenhla kwesihlungi se-particulate, isicupho se-NOx kanye / noma isiguquli se-catalytic nge-automated fluid storage. nohlelo lokujova. Imijovo ebalwe ngokunembile ye-DEF inyusa izinga lokushisa lezinto ezahlukahlukene zokuhlunga futhi izenze zikwazi ukusebenza kahle. Ukwengezwa kwe-DEF ohlelweni lokuguqula amandla kunweba isikhathi sokuhlunga futhi kunciphise ukukhishwa kwamagesi ayingozi wokukhipha emkhathini.

Amasistimu we-EAS kanye nama-catalysts abhekiwe futhi alawulwa yi-PCM noma isilawuli esizimele (esixhumana ne-PCM). Isilawuli sihlola ingcindezi ohlelweni lokujova oluncishisayo, i-O2, i-NOx nezinzwa zokushisa zegesi (kanye nokunye okufakwayo) ukuthola isikhathi esifanele somjovo we-DEF (owenziwe kabusha).

Uma i-PCM ithola ugesi wesifunda ongafanele we-EAS fuel pressure sensor, kuzogcinwa ikhodi ye-P20DD futhi isibani sesikhombisi esingasebenzi kahle singakhanyisa.

Buyini ubunzima bale DTC?

Ikhodi ye-P20DD egciniwe kufanele iphathwe ngokungathi sína futhi kufanele isingathwe ngokushesha okukhulu. Uhlelo lwe-EAS lungalimala ngenxa yezimo ezibe nomthelela ekuphikeleni kwekhodi ye-P20DD.

Yiziphi ezinye zezimpawu zekhodi?

Izimpawu zekhodi yenkinga ye-P20DD zingafaka:

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

Yiziphi ezinye zezimbangela ezivamile zekhodi?

Izizathu zale khodi zingabandakanya:

• Inzwa yengcindezi engaphelele ye-EAS
• Ipompo ye-EAS enamaphutha
• Isifunda esivulekile noma esifushane sezintambo ku-EAS circuit pressure sensor sensor
• Isilawuli esibi se-EAS / PCM noma iphutha lohlelo

Yiziphi izinyathelo ze-P20DD zokuxazulula inkinga?

Ukuhlonza ikhodi ye-P20DD kuzodinga isithwebuli sokuxilonga, i-digital volt / ohmmeter (i-DVOM), nomthombo wokuxilonga oqondene nemoto.

Sesha i-Technical Service Bulletin (TSB) efana nonyaka wokwenziwa, ukwenziwa nemodeli yemoto; kanye nokufuduswa kwenjini, amakhodi agciniwe, kanye nezimpawu ezitholakele kunganikeza imininingwane ewusizo yokuxilonga.

Ngithanda ukuqala ukuxilongwa kwami ​​ngokuhlola ngamehlo izintambo zokubopha ze-EAS nezixhumi. Izintambo ezishisiwe noma ezilimele kanye / noma izixhumi kufanele zilungiswe noma zifakwe esikhundleni ngaphambi kokuqhubeka.

Ngangiqhubeka ngokuxhuma isithwebuli kusixhumi sokuxilonga semoto bese ngithola wonke amakhodi agciniwe kanye nedatha yozimele efriziwe. Bhala phansi lolu lwazi ngaphambi kokusula amakhodi. Hlola ukushayela imoto kuze kube yilapho i-PCM ingena kumodi yokulungela noma ikhodi isuliwe.

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

Uma ikhodi isetha kabusha ngokushesha, isinyathelo esilandelayo sokuxilonga sizodinga ukusesha umthombo wolwazi lwemoto ukuthola imidwebo yebhulokhi yokuxilonga, ama-pinout, ubuso bokuxhuma, nezinqubo zokuhlolwa kwengxenye kanye nemininingwane.

Sebenzisa i-DVOM ukuhlola (ukwehla kwamandla kagesi) kuzo zonke izizathu zohlelo lwe-EAS. Qhubeka nokuhlola ukunikezwa kwamandla wesistimu yokulawula i-EAS. Hlola amafyuzi ngesifunda esilayishiwe ukuze ugweme ukuxilongwa okungafanele.

Uma onke amafiyuzi ohlelo elungile, sebenzisa i-DVOM ukuhlola inzwa yengcindezi ye-EAS namasekethe wezinzwa. Uma enye yalezi zingxenye ingahlangabezani nemininingwane yomkhiqizi, sola ukuthi inephutha.

• Ungakhohlwa Izihibe Zomhlaba Lapho Uhlola I-Voltage Drop

Izingxoxo ezihlobene ze-DTC

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

Udinga usizo olwengeziwe ngekhodi yakho ye-P20DD?

Uma usadinga usizo nge-DTC P20DD, 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.