P0078 B1 Exhaust Valve Control Solenoid Valve Dera

P0078 B1 Exhaust Valve Control Solenoid Valve Dera

Mapepala a OBD-II DTC

Utsi mavavu Control Solenoid Dera (Bank 1)

Kodi izi zikutanthauzanji?

Khodi iyi ndi generic OBD-II powertrain code, zomwe zikutanthauza kuti imagwira ntchito popanga ndi mitundu yonse yamagalimoto (1996 ndi atsopano), ngakhale njira zina zakukonzanso zitha kusiyanasiyana kutengera mtunduwo.

Pamagalimoto okhala ndi dongosolo losinthira ma valavu (VVT), gawo loyendetsa injini / powertrain control module (ECM / PCM) limayang'anira momwe camshaft imasinthira pakusintha kwamafuta amafuta ndi camshaft position control solenoid. The solenoid yowongolera imayang'aniridwa ndi chizindikiritso cha pulse wide modulated (PWM) kuchokera ku ECM / PCM. ECM / PCM imayang'anira chizindikirochi ndipo ngati magetsi atuluka mwatsatanetsatane kapena osakhazikika, imayika DTC iyi ndikuyatsa Check Engine Light / Malfunction Indicator Lamp (CEL / MIL).

Bank 1 imatanthawuza mbali ya # 1 ya silinda ya injini - onetsetsani kuti mwayang'ana molingana ndi zomwe wopanga amapanga. The exhaust valve control solenoid nthawi zambiri imakhala pambali yotulutsa mpweya wambiri wa mutu wa silinda. Khodi iyi ndi yofanana ndi ma code P0079 ndi P0080. Khodi iyi imathanso kutsagana ndi P0027.

Zizindikiro

Zizindikiro zimaphatikizapo:

• Check Engine Light (Nyali Yosazindikiritsa Yoyatsa) ndiyomwe ili
• Galimoto imatha kuvutika chifukwa chothamanga kwambiri komanso kuchepetsa mafuta.

Zotheka

Zomwe zingayambitse DTC P0078 zitha kuphatikiza:

• Kusagwirizana bwino kwa zingwe zolumikizira kapena malo owonongeka
• Opunduka ulamuliro solenoid
• Short dera mphamvu
• Dera lalifupi mpaka pansi
• ECM yolakwika

Njira zodziwira

Wiring Harness - Yang'anani ngati pali kulumikizana kwa mawaya otayirira, yang'anani ngati mawaya achita dzimbiri kapena osasunthika ku zolumikizira. Lumikizani zolumikizira zolumikizira ku solenoid ndi PCM pogwiritsa ntchito chojambula, pezani mawaya + ndi - ku solenoid. Solenoid ikhoza kuyendetsedwa kuchokera pansi kapena kuchokera kumbali ya mphamvu, malingana ndi ntchito. Onaninso zojambula zamawaya a fakitale kuti muwone momwe magetsi amayendera pozungulira. Pogwiritsa ntchito digito volt/ohmmeter (DVOM) yokhazikitsidwa ku Ohm, fufuzani kukana pakati pa mapeto aliwonse a waya. Kupyola malire pa DVOM kungakhale kotsegula mu mawaya, kulumikiza kosasunthika, kapena potsegula. Kukaniza kuyenera kukhala kozungulira 1 ohm kapena kuchepera, ngati kukana kuli kwakukulu, pangakhale dzimbiri kapena waya wosauka pakati pa solenoid ndi PCM/ECM.

Control Solenoid - Ndi chingwe chamagetsi chochotsedwa ku solenoid, pogwiritsa ntchito DVOM yokhazikitsidwa ku ohms, yang'anani kukana pakati pa malo onse amagetsi pa solenoid yokhayokha. Gwiritsani ntchito mfundo za fakitale kapena solenoid yodziwika bwino, ngati ilipo, kuti mudziwe ngati pali kukana kwambiri mu solenoid. Ngati pali malire kapena kukana kwambiri pa DVOM, solenoid mwina ndi yoyipa. Yesani pang'onopang'ono mpaka pansi kudutsa chowongolera cha solenoid polumikiza chiwongolero chimodzi cha DVOM ku malo abwino odziwika ndi china kutheminali iliyonse pa control solenoid. Ngati kukana kulipo, solenoid ikhoza kukhala ndi dera lalifupi lamkati.

Yafupika mphamvu - Chotsani chingwe ku PCM/ECM ndikupeza mawaya ku solenoid yowongolera. Ndi DVOM yokhazikitsidwa ku ma volts, gwirizanitsani njira yolakwika pansi ndi njira yabwino ku mawaya (ma) ku control solenoid. Yang'anani mphamvu yamagetsi, ngati ilipo, pakhoza kukhala nthawi yayifupi yogwiritsira ntchito mawaya. Pezani mphamvu yayifupi potulutsa zolumikizira zolumikizira ndikuyang'ana waya wobwerera ku solenoid.

Chachidule mpaka pansi - Chotsani chingwe kuchokera ku PCM/ECM ndikupeza mawaya ku solenoid yowongolera. Ndi DVOM yokhazikitsidwa ku ma volts, gwirizanitsani njira yabwino ku gwero lamagetsi lodziwika bwino, monga batri, ndi njira yolakwika yopita ku waya (ma) ku control solenoid. Yang'anani mphamvu yamagetsi, ngati ilipo, pakhoza kukhala yochepa kuti muyike muzitsulo zamawaya. Pezani zazifupi mpaka pansi potulutsa zolumikizira zolumikizira ndikuyang'ana waya wobwerera ku solenoid. Yang'anani pang'onopang'ono mpaka pansi kudzera pa solenoid yolamulira mwa kulumikiza chiwongolero chimodzi cha DVOM ku malo abwino odziwika ndi china ku siteshoni iliyonse pa solenoid yolamulira. Ngati kukana kuli kochepa, solenoid ikhoza kufupikitsidwa mkati.

PCM/ECM - Ngati mawaya onse ndi control solenoid ali bwino, padzakhala kofunikira kuyang'anira solenoid pamene injini ikuyenda poyang'ana mawaya ku PCM/ECM. Pogwiritsa ntchito chida chojambulira chapamwamba chomwe chimawerengera magwiridwe antchito a injini, yang'anani kuzungulira kwa ntchito komwe kumakhazikitsidwa ndi control solenoid. Zidzakhala zofunikira kulamulira solenoid pamene injini ikuyenda pa liwiro la injini zosiyanasiyana ndi katundu. Pogwiritsa ntchito oscilloscope kapena graphical multimeter yokhazikitsidwa kuti igwire ntchito, lumikizani waya wolakwika kumalo odziwika bwino komanso waya wabwino ku terminal ya waya iliyonse pa solenoid yomwe. Kuwerenga kwa ma multimeter kuyenera kufanana ndi ntchito yomwe yatchulidwa pa chida chojambulira. Ngati akutsutsana, polarity ikhoza kusinthidwa - gwirizanitsani waya wabwino kumbali ina ya waya ku solenoid ndikubwereza kuyesa kuti muwone. Ngati palibe chizindikiro chopezeka kuchokera ku PCM, PCM yokha ikhoza kukhala yolakwika.

Zokambirana zokhudzana ndi DTC

• P0014 / p0078Camshaft nthawi yolamulira solenoid valavu B1. Utsi mavavu Control Solenoid Dera Block 1. Ndidachotsa ma solenoid ndi yatsopano, koma ndili ndi awiri, kotero sindikudziwa ngati ndalakwitsa. Ndinawerenga kuti itha kukhala yolumikizira. Sindikudziwa choti ndichite pakadali pano…. 
• Nissa Versa 2013 - Exhaust Solenoid - Khodi Yolakwika P0078Moni forum, Chaka chabwino chatsopano ..! Ndikufuna thandizo kupeza mpweya wotulutsa mpweya wa VVT mu Nissan Versa Sedan SV ya 2013. Katswiri wanga sakugwira ntchito bwino, sathamanga ndipo ndiyenera kuthamangitsa zambiri kuti ndifike pa liwiro langa, komanso mafuta osagwira bwino ntchito. Zida sizimasuntha konse ... 

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