P209B Reductant Injection Air Pressure Sensor Circuit Range / Performance B

P209B Reductant Injection Air Pressure Sensor Circuit Range / Performance B

Mapepala a OBD-II DTC

Kuchepetsa B jekeseni Wopanikizika ndi Mpweya Wotulutsa Ma Range / Magwiridwe

Kodi izi zikutanthauzanji?

Code Yovutikira Kuzindikira (DTC) ndi nambala yodziwika bwino ndipo imagwira ntchito pamagalimoto ambiri a OBD-II (1996 ndi atsopano). Izi zitha kuphatikizira, koma sikuchepera ku, BMW, Mercedes-Benz, Dodge, Sprinter, ndi zina zambiri. Ngakhale zambiri, njira zowongolera zenizeni zimatha kusiyanasiyana kutengera mtundu wachitsanzo, kapangidwe, kapangidwe kake, ndi momwe amasinthira.

Khodi yosungidwa P209B imatanthauza kuti powertrain control module (PCM) yazindikira mulingo wamagetsi pamagawo obwezeretsa jekeseni wamagetsi a B omwe ali kunja kwa magwiridwe antchito. Kutchulidwa kwa B kumawonetsa sensa yapaderadera yomwe imagwiritsa ntchito masensa angapo opanikizika. Pitani ku bukhu lautumiki la mtundu wanu kuti mudziwe dera lomwe lili "B".

Makina othandizira amathandizira kuchepetsa (makamaka) zonse zotulutsa mpweya, ngakhale mapulogalamu ena amakhalanso ndi msampha wa NOx.

Machitidwe a Exhaust Gas Recirculation (EGR) amatenga gawo lina pochepetsa mpweya wa NOx. Komabe, mainjini akuluakulu amakono, amphamvu kwambiri a dizilo sangakwaniritse miyezo yolimba yochokera ku feduro (US) yokhala ndi dongosolo la EGR, chosakanizira chosinthira, ndi chopezera cha NOx. Pachifukwa ichi, makina osankha othandizira othandizira (SCR) apangidwa.

Machitidwe a SCR amalowetsa kapangidwe kochepetsera kapena Dizilo Exhaust Fluid (DEF) m'mafuta otulutsira kumtunda kwa fyuluta yamtunduwu, msampha wa NOx ndi / kapena chosinthira chothandizira kudzera mu valavu yochepetsera (solenoid). Jekeseni woyenera wa DEF umakweza kutentha kwa fyuluta ndikuilola kuti igwire bwino ntchito. Imakulitsa moyo wautumiki pazinthu zosefera ndikuthandizira kuchepetsa mpweya wa utsi woipa mumlengalenga. Dongosolo lonse la SCR limayang'aniridwa ndikuyang'aniridwa ndi PCM kapena wolamulira payekha (yemwe amagwirizana ndi PCM). Mulimonsemo, wowongolera amayang'anira O2, NOx ndi mpweya wotulutsa mpweya (komanso zolowetsa zina) kuti mudziwe nthawi yoyenera ya jekeseni ya DEF (yochepetsa). Mwatsatanetsatane jekeseni DEF chofunika kusunga utsi mpweya kutentha mkati magawo zovomerezeka ndi konza moyenera kusefera wa zoipitsa.

Pampu yochepetsera / kukonzanso imagwiritsidwa ntchito kupondereza DEF mumachitidwe amadzimadzi omwe angagwiritsidwe ntchito akafunika. PCM imayang'anira magetsi ampopu opatsirana pakusintha kosalekeza komanso kuchuluka kwa kuchuluka. PCM imayang'aniranso kachipangizo kamodzi kapena zingapo muzowonjezera zowonjezera kuti mudziwe ngati pali zotuluka m'dongosolo.

Ngati PCM iwona kuchuluka kwa voteji pa reductant jekeseni air pressure sensor B dera lomwe lili kunja kwanthawi zonse, code P209B idzasungidwa ndipo nyali yowonetsa kulephera (MIL) ikhoza kubwera. Kuunikira kwa MIL kungafunike kuzungulira kangapo - ngati kulephera.

Kodi kuuma kwa DTC kumeneku ndi kotani?

Khodi yosungidwa ya P209B iyenera kuchitidwa mozama ndipo iyenera kuchitidwa mwachangu momwe zingathere. Makina a SCR atha kukhala olumala chifukwa cha izi. Kuwonongeka kwa chothandizira kumatha kuchitika ngati zinthu zomwe zidapangitsa kuti kulimbikira kwa khothi zisakonzedwe munthawi yake.

Kodi zina mwazizindikiro za code ndi ziti?

Zizindikiro za vuto la P209B zitha kuphatikizira izi:

• Kuchepetsa mafuta
• Utsi wakuda kwambiri wakutha kwa galimoto
• Kuchepetsa ntchito ya injini
• Ma code ena okhudzana ndi SCR

Kodi zina mwazomwe zimayambitsa codezi ndi ziti?

Zifukwa za code iyi zitha kuphatikizira izi:

• Kuchepetsa wothandizila kuthamanga mpweya zosalongosoka (B)
• Dera lotseguka kapena lalifupi mu unyolo mumachitidwe amagetsi a jekeseni wa jakisoni wochepetsera
• Wolamulira woyipa wa SCR / PCM kapena pulogalamu yolakwika

Kodi ndi njira ziti zina zothetsera P209B?

Onetsetsani kuti njira yochepetsera / kukonzanso siyitaya kukakamiza (mkati kapena kunja). Tsegulani mpope kuti mupange zovuta ndikuyang'ana makina kuti achuke kunja. Gwiritsani ntchito poyesa mafuta kuti muwone momwe zinthu zikuyendera. Yang'anani pampu wodyetsa ndi nozzle kuti zatuluka. Ngati zotuluka (zamkati kapena zakunja) zapezeka, ziyenera kukonzedwa musanapitilize ndi matendawa.

Kuti mupeze nambala ya P209B, mufunika makina osanthula, digito volt / ohmmeter (DVOM), komanso gwero lazidziwitso zodziwitsa anthu zagalimoto.

Mutha kugwiritsa ntchito gwero lazidziwitso zamagalimoto anu kuti mupeze Technical Service Bulletin (TSB) yomwe ikufanana ndi chaka cha galimoto yanu, kupanga ndi kutengera; komanso kusamutsidwa kwa injini, ma code osungidwa ndi zizindikilo zapezeka. Mukachipeza, chitha kukupatsirani chidziwitso chothandiza pakuzindikira.

Gwiritsani ntchito sikani (yolumikizidwa ndi chingwe chodziwira galimoto) kuti mupeze ma code onse osungidwa ndi zomwe zimayimitsidwa pazithunzi. Ndikulimbikitsidwa kuti mulembe izi musanachotsere ma code ndikuyesa kuyendetsa galimotoyo mpaka PCM itayamba kukonzekera kapena nambala yake ichotsedwe.

Ngati PCM ilowa m'malo okonzeka panthawiyi, nambala yake ndiyokhazikika ndipo imatha kukhala yovuta kwambiri kuizindikira. Poterepa, zinthu zomwe zidapangitsa kuti codeyo isungidwe zitha kufunikira kukulirakulira asanadziwe bwinobwino.

Ngati nambala yanu yakonzedweratu nthawi yomweyo, gawo lotsatira lakuzindikira lifunika kuti mufufuze gwero lazidziwitso zamagalimoto anu kuti mupeze zojambula, ma pinout, zolumikizira zolumikizira, ndi zoyeserera zamagulu.

mwatsatane 1

Gwiritsani ntchito DVOM kuyesa masensa opanikizika a makina ochepetsera jekeseni malinga ndi zomwe wopanga amapanga. Zigawo zomwe zimalephera mayeso pamlingo woyenera kwambiri ziyenera kuwonedwa ngati zopanda pake.

mwatsatane 2

Ngati jekeseni wa reductant uli mkati mwazinthu, P209B code ikupitilira ndipo sensa yomwe ikufunsidwa ikugwira ntchito, gwiritsani ntchito DVOM kuyesa kulowetsa ndi kutulutsa ma circuits pakati pa masensa ndi wowongolera PCM / SCR. Chotsani olamulira onse musanagwiritse ntchito DVOM poyesa.

• Ma code ochepetsera ma nozzle nthawi zambiri amaphatikizidwa ndi mapampu a chakudya omwe akutuluka mkati.

Zokambirana zokhudzana ndi DTC

• Pakadali pano palibe mitu yofananira m'mabwalo athu. Tumizani mutu watsopano pamsonkhano tsopano.

Mukufuna thandizo lina ndi nambala ya P209B?

Ngati mukufunabe thandizo ndi DTC P209B, lembani funso mu ndemanga pansipa pamutuwu.

ZINDIKIRANI. Izi zimaperekedwa kuti zidziwitse zokha. Sikuti tizigwiritsa ntchito ngati malingaliro okonzanso ndipo sitili ndi udindo pazomwe mungachite pagalimoto iliyonse. Zomwe zili patsamba lino ndizotetezedwa ndi zovomerezeka.