P20BE Reductant Heater B Kudzora Circuit Performance

OBD-II DTC Dhata

Inoderedza B hita Kudzora Circuit Performance

Izvi zvinorevei?

Iyi Yekuongorora Dambudziko Kodhi (DTC) ndeye yakajairika kodhi yekufambisa uye inoshanda kune mazhinji OBD-II dhiziri mota (1996 uye nyowani). Izvi zvinogona kusanganisira, asi hazvingogumiri ku, Ford, Mercedes Benz, Sprinter, Audi, Ram, Chevrolet, Dodge, BMW, GMC, nezvimwe. Kunyangwe hazvo zvakasarudzika, matanho chaiwo ekugadzirisa anogona kusiyana zvichienderana nemhando yegore, mhando, hutachiwana mamodheru uye kumisikidza. ...

Iyo yakachengetwa P20BE kodhi inoreva iyo powertrain control module (PCM) yaona isina kujairika voltage iri kunze kweyakajairika huwandu hweanotarisirwa maitiro padunhu rekutonga kune iyoboard inodzora hita, inoratidzwa netsamba B. Iri zita rinoshandiswa kana akawanda zvinoderedza hita zviri kushandiswa, tarisa kumagadzirirwo emota echinyorwa kuona kuti ndeipi B wedunhu yakakodzera kune chako chikumbiro.

Iyo catalyst system inoitisa kudzikisira (kunyanya) mamwe ese emafesi emhepo, kunyangwe mamwe mashandisirwo akave akashongedzerwa neNox musungo.

Exhaust Gesi Kutenderera (EGR) masisitimu anotora rimwe danho mukuderedza NOx emissions. Nekudaro, yanhasi makuru, enjini dzedhiziri dzine simba kwazvo hadzigone kusangana neyakaomarara federal (US) emission zviyero neEGR chete, DPF / chinogadzirisa chinogadziriswa, uye NOx musungo. Neichi chikonzero, masarudzo akasarudzika ekuderedza (SCR) akagadzirwa.

MaSCR masisitimu anopinza inodzora mumiririri wemubatanidzwa kana Dizisi Exhaust Fluid (DEF) mukati memhepo yekumusoro inokwira kumusoro kweiyo firita firita uye / kana chinogadzirisa chinoshandura. Iyo chaiyo yakaverengerwa DEF jekiseni inokwidza tembiricha yechinhu chesefa uye ichiitendera kuti ishande zvakanyanya. Izvi zvinowedzera hupenyu hwebasa rechinhu chesefa uye zvinobatsira kudzikisira kuburitswa kwemagasi ekukuvadza anokuvadza mumhepo.

Iyo yese SCS system inoongororwa uye inodzorwa nePCM kana inomira-yega mutyairi (iyo inobatana nePCM). Chero zvazvingaitika, mutungamiriri anotarisa iyo O2, NOx uye yekupedza gasi tembiricha sensors (pamwe nezvimwe zvigadzirwa) kuona nguva yakakodzera yeiyo DEF (inoderedza) jekiseni. Precision DEF jekiseni inodiwa kuchengetedza iyo yekuzora gasi tembiricha mukati meyakagamuchirwa parameter uye kugadzirisa iyo filtration yezvinosvibisa.

Kuderedza zvinoshandiswa mumiririri zvinopisa zvinoshandiswa kudzivirira injini yedhiziri kupedza chiutsi kubva kuchando patembiricha yakanyanyisa. Aya mahedzi anowanzo kuwanikwa munzvimbo yeDEF uye / kana mune hosipaipi (s) yekudzikisa mumiririri wemuromo.

Kana iyo PCM ikaona isina kujairika magetsi iri kunze kweyakajairika huwandu hweanotarisirwa maitikiro padunhu rekudzora reducant hita B, P20BE kodhi inochengetwa uye iyo yekusaita mwenje chiratidzo inogona kuvhenekera.

Kuderedza mumiririri wemidziyo kunogona kuwanikwa mukati meDEF tangi (muenzaniso unoratidzwa pano):

Chii chakakomba cheiyi DTC?

Iyo yakachengetwa P20BE kodhi inofanirwa kurapwa seyakakomba uye inofanira kugadziriswa nekukurumidza sezvazvinogona. Iyo SCR system inogona kuve yakaremara nekuda kweizvi. Catalyst kukuvara kunogona kuitika kana iwo mamiriro akakonzera kuenderera kwekodhi isina kugadziriswa nenzira yakakodzera.

Ndezvipi zvimwe zvezviratidzo zvekodhi?

Zviratidzo zveP20BE kodhi yekutambudzika inogona kusanganisira:

Yakaderedzwa injini kuita
Hutsi hutema hwakawandisa kubva mumotokari chiutsi
Yakadzikira mafuta kunyatsoshanda
Mamwe macode ane chekuita neCSC

Ndezvipi zvimwe zvezvikonzero zvinowanzoitika zveiyo kodhi?

Zvikonzero zveiyi kodhi zvinogona kusanganisira:

Yakashata inoderedza hita
Vhura kana ipfupi dunhu mune inoderedza mumiririri hita kudzora wedunhu
Kuderedza mumiriri tembiricha sensor isina kukwana
Yakashata SCR / PCM controller kana programming kukanganisa

Ndeapi mamwe matanho eP20BE ekugadzirisa matambudziko?

Iwe unozoda kuwana kune yekuongorora scanner, digital volt / ohmmeter (DVOM), uye mota-yakatarwa yekuongorora ruzivo sosi yekuongorora iyo P20BE kodhi.

Kana iwe uchikwanisa kuwana technical Service Bulletin (TSB) inoenderana negore rekugadzira, gadzira uye modhi yemota; pamwe neinjini yekufambisa, yakachengetwa kodhi / makodhi uye zviratidzo zvakawanikwa, inogona kupa ruzivo rwakakosha rwekuongorora.

Iwe unofanirwa kutanga kuongororwa pamwe nekuona nekuona harnesses uye zvinongedzo zveiyo inoderedza hita system. Yatsva kana yakakuvara wiring uye / kana zvinongedzo zvinofanirwa kugadziriswa kana kutsiviwa usati waenderera.

Wobva wabatanidza iyo scanner kune iyo mota yekuongorora socket uye unotora ese akachengetwa makodhi uye inoenderana kuomesa furemu data. Nyora chinyorwa cheruzivo urwu usati wabvisa makodhi uye bvunzo kutyaira mota kusvikira iyo PCM yapinda yakagadzirira modhi kana kodhi yadzoswazve.

Iyo kodhi iri yepakati uye inogona kuve yakanyanya kuoma kuongorora (parizvino) kana PCM ikaenda yakagadzirira modhi. Muchiitiko ichi, mamiriro akakonzera kuchengetedzwa kwekodhi angangoda kuwedzera kusati kwanyatso kuongororwa.

Kana iyo kodhi ikatangazve, tsvaga yako mota ruzivo sosi yekuongorora ekuvharisa madhayagiramu, chinongedzo pinouts, chinongedzo kumeso kutarira, uye chikamu chekuyedza maitiro uye maratidziro. Iwe uchazoda ruzivo urwu kuti upedze nhanho inotevera mune yako kuongororwa.

Shandisa DVOM kuti utarise magetsi eSCR / control system. Tarisa mafiyasi nedunhu rakatakudzwa kuti usazorwara zvisizvo. Kana simba rakakodzera (bhatiri voltage) uye maseketi epasi akawanikwa, shandisa iyo scanner kumisikidza iyo inoderedza hita / s uye tarisa iyo control wedunhu kuburitsa voltage. Kana iyo voltage isingakwani, fungidzira mutungamiriri akaremara kana ane programming kukanganisa.

Kana iyo inobuda magetsi wedunhu iri mukati mezvakatemwa, shandisa iyo DVOM kuyedza iyo inoderedza mumiriri kudziisa chinhu chiri mubvunzo. Kana hita ikasasangana nemagadzirirwo emugadziri, zvinofungidzirwa kuti yatadza.

Kana kodhi iyi ikafumurwa mune inodziya mamiriro ekunze, fungidzira kuti chikanganiso chehurongwa chakaitika.

Inoenderana DTC hurukuro

Heater yeiyo inoderedza Mercedes GLK250 P20BEHei! Ini ndakangoenda kuMercedes ndokubhadhara $ 1600 kutsiva heater. Maawa makumi maviri nemana mushure mekusiya mutengesi, cheki injini yekuvhenekera ichavhenekera zvakare nekodhi imwechete ... Vakaita chimwe chinhu chisina kunaka kana chingave chimwewo chinhu? Ndokutenda zvikuru!…

Unoda rumwe rubatsiro neP20BE kodhi?

Kana iwe uchiri kuda rubatsiro neDTC P20BE, tumira mubvunzo mune zvakataurwa pazasi peichi chinyorwa.

ONA. Ruzivo urwu rwunopihwa ruzivo rwezvinangwa chete. Izvo hazvina kuitirwa kuti ishandiswe sekurudziro yekugadzirisa uye isu hatisi ivo vane basa kune chero chiito iwe chaunotora pane chero mota. Zvese ruzivo pane ino saiti zvinodzivirirwa ne copyright.