I-P2099 Post-Catalyst Fuel Trim System too Rich Bank 2

I-P2099 Post-Catalyst Fuel Trim System too Rich Bank 2

Idatha ye-OBD-II DTC

Uhlelo Lokunciphisa Ngemuva KweCatalyst Too Rich Bank 2

Kusho ukuthini lokhu?

Le Khodi Yezinkinga Zokuxilonga (i-DTC) yikhodi yokudlulisela ejwayelekile, okusho ukuthi isebenza kuzo zonke izimoto kusukela ngo-1996 (Ford, Dodge, GMC, Chevrolet, Mercedes, VW, njll.). Yize kuvamile emvelweni, izinyathelo ezithile zokulungisa zingahluka ngokuya ngohlobo lomkhiqizo / imodeli.

Ngaso sonke isikhathi uma ngingena ku-P2099 DTC ngiyazi ukuthi kusho ukuthi imojula yokulawula i-powertrain (PCM) ithole i-voltage yokufaka isignali ukusuka kunzwa ye-oxygen engezansi (ngemuva kwe-catalytic) (O2) yebhange lokuqala lezinjini, okubonisa ukuthi okuqukethwe komoyampilo izinhlayiya ziphansi kakhulu. I-Bank 2 iyiqembu lenjini elingaqukethe isilinda #1.

Inzwa ye-O2 iqukethe into yokuzwa i-zirconia eboshwe ezindlini zensimbi ezinomoya. Ama-electrode e-Platinum asetshenziselwa ukuxhuma isici sokuzwa nezintambo ku-O2 sensor wiring harness. Ihhanisi yenzwa ye-O2 ixhuma kwi-PCM ngenethiwekhi yesilawuli. Inzwa ye-O2 inikeza i-PCM idatha yesikhathi sangempela kumaphesenti ezinhlayiya ze-oksijini ekuqothulweni kwenjini uma kuqhathaniswa nokuqukethwe kwe-oxygen emoyeni.

Imfucumfucu ephuma enjinini idudulwa iphindaphindwe kaningi ize iyongena kumbhoxo womsila nasesiguqulweni sokusebenza. Ngemuva kwalokho badlula ngenzwa engezansi ye-O2. Amagesi okukhipha adlula emigodini yokungenisa umoya ezindlini zensimbi nangesici sokuzwa. Umoya ongaphandle udonselwa egumbini eliphakathi kwenzwa ngezimbobo zocingo. Ekamelweni, umoya oseduze uyashisa, ubangele ukuthi i-oxygen ions ikhiqize ukucindezeleka (okunamandla). Ukushintshashintsha phakathi kokuhlushwa kwama-molecule e-oksijini emoyeni (okuhehwa inzwa ye-O2) kanye nokuhlushwa kwama-oksijeni omoya ekuqothulweni kubangela ukushintshashintsha kwamandla kagesi. Lokhu kudlidlizela kubangela ukuthi i-oxygen ions engaphakathi kwenzwa ye-O2 igxume ngokushesha okukhulu nangokuphindaphindayo kusuka kolunye ungqimba lweplathinamu kuye kolandelayo.

Izinguquko zamandla kagesi zenzeka lapho kugadla ama-oksijeni ions ahamba phakathi kwezendlalelo ze-platinum. I-PCM ibona lezi zinguquko zamandla kagesi njengezinguquko ekugxileni kwe-oksijini kugesi wokukhipha. Lolu shintsho lukhombisa ukuthi injini isebenza ngokuncika (uphethiloli omncane kakhulu) noma ucebile (uphethiloli omningi kakhulu). Umthamo we-voltage ovela ku-O2 sensor uphansi uma kunomoya-mpilo omningi ku-exhaust (state lean). Okukhipha amandla wegesi kuphakeme uma kukhona i-oksijini encane ekuqothulweni (isimo esinothile). Le datha isetshenziswa yi-PCM, phakathi kwezinye izinto, ukubala isu likaphethiloli nesikhathi sokushisa.

Lapho i-PCM isingene kumodi evaliwe yeluphu, uma okufakwayo kwesifunda kwe-O2 esifundeni esezansi kwebhange 2 kukhombisa ama-molecule e-oxygen ambalwa kakhulu ku-exhaust, kuzogcinwa ikhodi ye-P2099 bese kukhanya isibonakaliso sokungasebenzi kahle.

Ubunzima nezimpawu

Ikhodi ye-P2099 isho ukuthi inzwa ye-Bank 2 engezansi kwe-O2 ithole isimo sokukhipha okucebile. Ukusebenza kahle kukaphethiloli kungakhubazeka futhi ikhodi kufanele ibhekwe njengebucayi.

Izimpawu zekhodi ye-P2099 zingafaka:

• Ukunciphisa ukusebenza kwephethiloli
• Ukuntuleka kokusebenza kwenjini jikelele
• Amanye ama-DTC ahlobene angagcinwa
• Isibani senjini yensiza sizokhanyisa kungekudala

izizathu

Izimbangela ezingaba khona zale khodi yenjini zifaka:

• Isiguquli seBhange 2 esinezici.
• I-MAF enephutha noma inzwa yengcindezi yomoya eninginingi.
• Iphutha le-O2 sensor bank 2 / s
• Izintambo ezishisiwe, eziphukile, eziphukile noma ezinqanyuliwe kanye / noma izixhumi
• Injini iyavuza

Izinqubo zokuxilonga nokulungisa

Iphuzu elihle lokuqala ngaso sonke isikhathi ukuhlola ama-bulletins ezinsizakalo zobuchwepheshe (i-TSB) yemoto yakho ethile. Inkinga yakho ingaba inkinga eyaziwa ngesilungisi esikhishwe ngumkhiqizi futhi ingakongela isikhathi nemali ngenkathi uxazulula inkinga.

Iskena sokuxilonga, i-digital volt ohmmeter (i-DVOM), kanye nencwajana yokuhlinzeka ngemoto kuzosiza ekutholeni ikhodi ye-P2099. Yonke Idatha (i-DIY) futhi ingumthombo omuhle wemidwebo yezintambo zesistimu nolunye ulwazi oluqondene nohlelo.

Injini kufanele isebenze kahle ngaphambi kokuzama ukuthola le khodi. Amakhodi wokugculisa, amakhodi we-sensor position, amakhodi we-air pressure amaningi, namakhodi wezinzwa ze-MAF kufanele abuyekezwe ngaphambi kokuzama ukuthola ikhodi ye-P2099.

Qala ngokubuka ngokuhlola ama-harnesses wiring wesistimu nezixhumi. Nge-P2099, bengizonaka kakhulu amahanisi ahanjiswa eduze kwamapayipi wokushisa ashisayo namanqwaba, kanye nalawo ahanjiswa ngasemaphethelweni abukhali (amakhanda amasilinda).

Xhuma isithwebuli ethekwini lokuxilonga bese ubuyisa wonke ama-DTC agciniwe bese uqandisa idatha yozimele. Bhala phansi lolu lwazi. Lokhu kungaba wusizo uma kutholakala ukuthi kuyikhodi yezikhathi ezithile. Amakhodi angenamkhawulo anzima kakhulu ukuwaxilonga.

Uma i-P2099 isetha kabusha ngokushesha, qala injini bese uyivumela ukuthi ifinyelele izinga lokushisa elijwayelekile lokusebenza. Yivume idle (ngokungathathi hlangothi noma emile). Sebenzisa isithwebuli ukuqapha okokufaka kwenzwa yasebhange engu-2 O2. Ukwehlisa ukusakazwa kwedatha ukufaka kuphela idatha efanele kuzosheshisa impendulo yedatha. Bheka isinali lenzwa ephansi ye-O2. Uma injini isebenza kahle, imininingwane evela kunzwa engaphansi ye-O2 kufanele ilinganiselwe futhi ihlale lapho.

I-DVOM ingasetshenziselwa ukuvivinya ukumelana kwenzwa ye-O2 okukhulunywa ngayo, kanye nezimpawu zamandla kagesi nezomhlabathi zesekethe lenzwa ye-O2. Nqamula izilawuli ezisebenzayo ngaphambi kokuzama ukuhlola ukumelana kwesifunda kohlelo ne-DVOM.

Amanothi wokuxilonga angeziwe:

• Inzwa ye-O2 esezansi akufanele isebenze kaningi njengama-sensors akhuphukayo (ngemuva kokuthi i-PCM ingene kumodi yokuvala evaliwe). Uma inzwa engezansi iqhubeka isebenza kaningi njengenzwa engenhla ngemuva kokuthi injini ifudumele futhi i-PCM isingenise imodi ye-loop evaliwe, usola isiguquli esinephutha sokuguqula amandla.
• Lapho kushintshwa okuguqukayo okuguqukayo, cabanga ngezinto zekhwalithi ye-OEM. Abaguquli abaguquliwe abangavuseleleki noma abangajwayelekile bavame ukwehluleka ngokushesha nangokuphindaphindiwe

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Udinga usizo olwengeziwe ngekhodi le-p2099?

Uma usadinga usizo nge-DTC P2099, thumela umbuzo kumazwana angezansi kwalesi sihloko.

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