I-P2256 O2 Sensor Negative yamanje Control Circuit High Bank 2 Inzwa 1

I-P2256 O2 Sensor Negative yamanje Control Circuit High Bank 2 Inzwa 1

Idatha ye-OBD-II DTC

O2 Inzwa Negative yamanje Control Circuit Bank 2 Inzwa 1

Kusho ukuthini lokhu?

Le yi-generic Diagnostic Trouble Code (DTC) esebenza ezimotweni eziningi ze-OBD-II (1996 nezintsha). Lokhu kungabandakanya kepha akukhawulelwe kwaMazda, VW, Acura, Kia, Toyota, BMW, Peugeot, Lexus, Audi, njll. Naphezu kwemvelo ejwayelekile, izinyathelo eziqondile zokulungisa zingahluka ngokuya ngonyaka wokwenziwa, uphawu, izinhlobo kanye ukuhanjiswa.

Ikhodi egciniwe engu-P2256 isho ukuthi imojula yokulawula i-powertrain (PCM) ithole ukungafani kwamanje okungalungile kunzwa yomoya-mpilo okhuphuka nomfudlana (O2) wenombolo yebhange lenjini yesibili. I-Bank two iyiqembu lezinjini ezingenawo isilinda inombolo eyodwa. Inzwa 1 iyinzwa ephezulu (yangaphambili). I-negative current control circuit yi-ground circuit.

I-PCM isebenzisa okokufaka okuvela kuzinzwa ezishisayo zomoya-mpilo (HO2S) ukuqapha okuqukethwe komoya-mpilo kumagesi okukhipha ebhange ngalinye lenjini, kanye nokusebenza kahle kwesiguquli se-catalytic.

Izinzwa zomoya-mpilo zakhiwa kusetshenziswa i-zirconia sensing element etholakala maphakathi nendlu yensimbi evulekile. Ama-electrode amancane e-platinum athengiswa phakathi kwesici sokuzwa nezintambo kusixhumi se-oxygen sensor harness. Isixhumi sokubopha inzwa ye-O2 sixhuma kunethiwekhi yesilawuli (i-CAN), exhuma ihanisi ye-oxygen sensor kusixhumi se-PCM.

I-HO2S ngayinye inezintambo (noma izikopelo) kwipayipi lokukhipha noma ezininginingi. Ibekwe kahle ukuze into yokuzwa isondele enkabeni yepayipi. Amagesi okukhipha imfucuza ashiya igumbi lokushisa umlilo (ngokusebenzisa izinqwaba ze-exhaust) futhi adlule ohlelweni lokukhipha (kufaka phakathi abaguquli be-catalytic); kuvuza ngaphezu kwezinzwa ze-oxygen. Amagesi okukhipha angena enzwa ye-oksijini ngokusebenzisa imingcele yomoya eyakhiwe ngokukhethekile ezindlini zensimbi futhi azungeze into yensiza. Umoya odonswe ngezimbobo zocingo ezindlini zenzwa ugcwalisa ikamelo elincane maphakathi nenzwa. Umoya oshisayo (egumbini elincane) ubangela ukuthi ama-ioni oksijini akhiqize amandla, i-PCM ewabona njengamandla kagesi.

Umehluko phakathi kwenani lama-O2 ions emoyeni ozungezile kanye nenombolo yama-molecule e-oksijini ekuqothulweni kubangela ukuthi i-oksijeni ions evuthayo ngaphakathi kwe-HO2S igxume ngokushesha okukhulu futhi ngezikhathi ezithile kusuka kolunye ungqimba lweplathinamu kuye kolandelayo. Njengoba i-ions ye-oksijini eshayayo ihamba phakathi kwezendlalelo zeplatinamu, amandla wokukhipha we-HO2S ayashintsha. I-PCM ibona lezi zinguquko kumandla wokukhipha we-HO2S njengezinguquko ekugxileni kwe-oksijini kugesi wokukhipha.

Imiphumela yamandla kagesi evela ku-HO2S iphansi lapho umoya-mpilo omningi ukhona ku-exhaust (isimo esinciphile) futhi uphakama lapho umoya-mpilo omncane ukhona ku-exhaust (state rich). Le ngxenye ye-HO2S isebenzisa i-voltage ephansi (ngaphansi kwe-volt eyodwa).

Engxenyeni ehlukile yenzwa, i-HO2S ishiswa kusetshenziswa i-voltage yebhethri (ama-volts ayi-12). Lapho izinga lokushisa lenjini liphansi, i-voltage yebhethri ishisa i-HO2S ukuze iqale ukuqapha i-oksijini ekuqothulweni ngokushesha okukhulu.

Uma i-PCM ithola izinga lamandla aphezulu kakhulu futhi ingekho ngaphakathi kwemingcele eyamukelekayo, i-P2256 izogcinwa futhi ilambu le-Malfunction Indicator (MIL) lingakhanyisa. Izimoto eziningi zizodinga imijikelezo eminingi yokushisa (ekuhlulekeni) ukuvula ilambu lesixwayiso.

Inzwa ye-oxygen ejwayelekile O2:

Buyini ubunzima bale DTC?

I-HO2S enokungasebenzi kahle kwesifunda ingaholela ekusebenzeni kabi kwezinjini kanye nezinkinga zokuphatha ezahlukahlukene. I-P2256 kufanele ihlukaniswe njengobucayi futhi kufanele ilungiswe ngokushesha okukhulu.

Yiziphi ezinye zezimpawu zekhodi?

Izimpawu zekhodi yenkinga ye-P2256 zingafaka:

• Ukwehla kwamandla kaphethiloli
• Ukunciphisa ukusebenza kwenjini
• Amakhodi Okugcwala Agciniwe noma Amakhodi Wokukhipha Ocebile / Acebile
• Isibani senjini yensiza sizokhanyisa kungekudala

Yiziphi ezinye zezimbangela ezivamile zekhodi?

Izizathu zale khodi zingabandakanya:

• Inzwa / s oksijini enamaphutha
• Izintambo ezishisiwe, eziphukile, eziphukile noma ezinqanyuliwe kanye / noma izixhumi
• Iphutha lokuhlela le-PCM noma le-PCM elingalungile

Yiziphi ezinye zezinyathelo zokuxazulula inkinga nge-P2256?

Ukuxilongwa okunembile kwekhodi ye-P2256 kudinga isithwebuli sokuxilonga, i-digital volt / ohmmeter (i-DVOM), nomthombo wolwazi wemoto onokwethenjelwa.

Xhuma isithwebuli esikhumulweni semoto sokuxilonga bese uthola wonke amakhodi agciniwe kanye nedatha yoqhwa ehambisanayo. Uzofuna ukubhala lolu lwazi phansi uma kwenzeka ikhodi ivele ibe ngephakathi. Bese usule amakhodi bese uhlola ukushayela imoto. Ngalesi sikhathi, eyodwa yezinto ezimbili izokwenzeka. Kungaba i-P2256 izosulwa noma i-PCM izongena kumodi elungele.

Uma ikhodi iphakathi futhi i-PCM ingena kumodi elungile, kungaba nzima kakhulu ukuyithola. Izimo eziholele ekugcinweni kwe-P2256 zingadinga ukuba zimbi kakhulu ngaphambi kokuthola ukuxilongwa okunembile. Uma ikhodi isuliwe, qhubeka nokuxilonga.

Ukubukwa kwe-faceplate yesixhumi, imidwebo ye-pinout pinout, ukwakheka kwezinto, imidwebo ye-wiring, nemidwebo ye-diagnostic block (ehlobene nekhodi ehambisanayo nemoto) ingatholakala kusetshenziswa umthombo wolwazi lwemoto yakho.

Hlola ngokubonakalayo izintambo nezixhumi ezihlobene ne-HO2S. Faka esikhundleni izintambo ezisikiwe, ezishisiwe noma ezilimele.

Nqamula i-HO2S okukhulunywa ngayo bese usebenzisa i-DVOM ukuhlola ukumelana phakathi kwesekethe yokulawula yamanje engalungile nanoma yimaphi amasekethe kagesi. Uma kunokuqhubeka, sola i-HO2S enephutha.

Uma ikhodi ye-P2256 iqhubeka nokusetha kabusha, qala injini. Yivumele ifudumale ize ifinyelele kokushisa okujwayelekile kokusebenza futhi ingenzi lutho (ngokuhanjiswa kungathathi hlangothi noma epaki). Xhuma isithwebuli esikhumulweni semoto sokuxilonga bese ubona okokufaka kwe-oxygen sensor ekusakazweni kwedatha. Nciphisa ukusakazwa kwedatha yakho ukufaka idatha efanelekile yempendulo esheshayo.

Uma izinzwa zomoya-mpilo zisebenza ngokujwayelekile, amandla omoya onqenqemeni lwezinzwa zomoya-mpilo umfutho wokuguqula okuguqukayo azojikeleza ngokuqhubekayo kusuka ku-1 kuye ku-900 millivolts lapho i-PCM ingena kumodi evaliwe yeluphu. Izinzwa zePost-Cat nazo zizohamba phakathi kuka-1 no-900 millivolts, kepha zizofakwa endaweni ethile futhi zihlale zizinzile (uma kuqhathaniswa nezinzwa zangaphambi kwekati). I-HO2S engasebenzi kahle kufanele ibhekwe njengengalungile uma injini isebenza kahle.

Uma i-HO2S ibonisa umbane wamandla webhethri noma ingekho i-voltage ekusakazweni kwedatha yesithwebuli, sebenzisa i-DVOM ukuthola idatha yesikhathi sangempela kusixhumi se-HO2S. Uma okukhiphayo kuhlala kufana, sola i-HO2S yangaphakathi emfushane ezodinga ukushintshwa kwe-HO2S.

• Ezimweni eziningi, uzolungisa lolu hlobo lwekhodi ngokufaka ama-HO2S afanele, kepha uqedele ukuxilongwa noma kunjalo.

Izingxoxo ezihlobene ze-DTC

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

Udinga usizo olwengeziwe ngekhodi engu-P2256?

Uma usadinga usizo nge-DTC P2256, 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.