P20A4 Reductant purge control valve yatseguka

P20A4 Reductant purge control valve yatseguka

Mapepala a OBD-II DTC

Valavu yochepetsera yotsegula yotseguka imatseguka

Kodi izi zikutanthauzanji?

Imeneyi ndi nambala yovuta yoyeza matenda (DTC) yomwe imagwira ntchito pamagalimoto ambiri a OBD-II (1996 mpaka pano). Izi zitha kuphatikizira, koma sikuchepera ku, Chevrolet, GMC, Ford, Mitsubishi, VW, Sprinter, Audi, ndi zina zambiri. Ngakhale zili choncho, njira zowongolera zenizeni zimatha kusiyanasiyana kutengera mtundu wachitsanzo, kupanga, mtundu ndi kapangidwe kake.

OBD-II DTC P20A4 ndi ma code P20A0, P20A1, P20A2, P20A3, ndi P20A5 amalumikizidwa ndi dera loyendetsa la purge control valve. Dera ili limadziwikanso kuti Dizilo Exhaust Liquid (DEF).

Cholinga cha reductant purge valve circry ndikutumiza chizindikiritso ku module ya power control (PCM) kapena module control engine (ECM) ngati cholozera chodziwitsa nthawi yomwe pampu yochepetsera ikufunika kuti isinthe kayendedwe ndi kuyeretsa dongosolo la DEF. Njirayi imagwiritsidwa ntchito kuthandiza kusintha tinthu totsalira totsalira kukhala mpweya wopanda vuto lililonse. DEF idapangidwa kuti isinthe mpweya woipa wa NOx kukhala nayitrogeni, kaboni dayokisaidi ndi madzi kuti ateteze chilengedwe.

PCM kapena ECM itazindikira kuti valavu yochepetsako ya purge yatseguka, nambala ya P20A4 imayika ndipo kuwala kwa injini kuwunika.

Makaniko:

Kodi kuuma kwa DTC kumeneku ndi kotani?

Kukula kwa code iyi nthawi zambiri kumakhala kwapakatikati, koma P20A4 imatha kukhala yayikulu ngati mpweya woopsa uchotsedwa pamoto, ndikupangitsa kuti ikhale chitetezo chomwe chimafunikira kuyang'aniridwa mwachangu.

Kodi zina mwazizindikiro za code ndi ziti?

Zizindikiro za vuto la P20A4 zitha kuphatikizira izi:

• Kugwiritsa ntchito injini molakwika
• Kuchepetsa mafuta
• Chowunikira cha injini chikuyatsa

Kodi zina mwazomwe zimayambitsa codezi ndi ziti?

Zifukwa za code iyi P20A4 zitha kuphatikizira izi:

• Kuchepetsa wothandizila kuchotsa purge valavu zosalongosoka
• Kulumikizana kolakwika kapena kowonongeka
• Kutaya kapena kulakwitsa gawo loyendetsa
• Zowonongeka, zowonongeka kapena zotayirira
• Fuseti yolakwika kapena jumper (ngati zingatheke)
• PCM yolakwika kapena ECM

Kodi njira zothetsera P20A4 ndi ziti?

Gawo loyamba pothetsera vuto lililonse ndikuwunikanso za Technical Service Bulletins (TSBs) zamagalimoto pachaka, mtundu, ndi kupangira magetsi. Nthawi zina, izi zimatha kukupulumutsirani nthawi yayitali ndikukulozerani njira yoyenera.

Gawo lachiwiri ndikupeza zigawo zonse zomwe zimagwirizanitsidwa ndi reductant purge control valve circuit ndikuyang'ana zowonongeka zowonongeka. Malingana ndi galimoto yeniyeni, dongosolo la DEF lingaphatikizepo zigawo zingapo kuphatikizapo pampu yamagetsi yochepetsera magetsi, valve purge, sensor sensor, integral level sensor, sensor kutentha, heaters system, zosefera, injector yochepetsera magetsi, ndi posungira. Yang'anani mozama kuti muwone mawaya omwe akugwirizana nawo kuti muwone zolakwika zoonekeratu monga zokwapula, zotupa, mawaya owonekera, kapena zipsera. Kenako, yang'anani zolumikizira ndi maulumikizidwe kuti chitetezo, dzimbiri ndi kuwonongeka kwa ojambula. Njirayi iyenera kuphatikiza zolumikizira zonse ndi zolumikizira kuzinthu zonse kuphatikiza PCM kapena ECM. Onani tsamba laukadaulo lagalimoto kuti muwone ngati fuse kapena ulalo wa fusewu ukuphatikizidwa muderali.

Njira zapamwamba

Njira zowonjezerazo zimakhala zenizeni zagalimoto ndipo zimafuna zida zoyenerera kuti zichitike molondola. Njirazi zimafuna zikwangwani zama digito zama multimeter komanso zamagalimoto. Poterepa, kuyeza kofunikiranso kumafunikanso kuti athetse zovuta.

Mayeso amagetsi

Ma voliyumu ofotokozera ndi magulu ololeka amatha kusiyanasiyana kutengera mtundu wamagalimoto ndi kasinthidwe ka dera. Dongosolo lenileni laumisiri liphatikizira matebulo othetsera mavuto ndi njira zoyenera kukuthandizani kudziwa molondola.

Ngati njirayi itazindikira kuti magetsi kapena nthaka ikusowa, pangafunike kupitiliza kufufuza kuti mutsimikizire kukhulupirika kwa zingwe, zolumikizira, ndi zinthu zina. Kuyesa kopitilira muyeso kumayenera kuchitika nthawi zonse ndi magetsi osachotsedwa pamayendedwe ndi kulumikizana kwanthawi zonse komanso kuwerengetsa kolumikizana kuyenera kukhala 0 ohms of resistance. Kukaniza kapena kupitilira kulikonse kumawonetsa kulumikizana kolakwika komwe kumatseguka kapena kufupikitsidwa ndipo kumafuna kukonzanso kapena kusintha. Kupitiliza kuyesa kuchokera ku PCM kapena ECM kupita pachimango kumatsimikizira kukhulupirika kwa zingwe zapansi ndi zingwe zapansi. Kukaniza kumawonetsa kulumikizana kotayika kapena dzimbiri lotheka.

Kodi njira zokhazikika zotani zokonzera code iyi ndi ziti?

• Kusintha Valavu Yochepetsa Kuchepetsa Kutsuka
• Kukonza zolumikizira ndi dzimbiri
• Konzani kapena sinthanitsani zingwe zolakwika
• Kuchotsa fuseti kapena fuse (ngati zingatheke)
• Kukonza kapena kusinthitsa matepi olakwika
• Kuwala kapena kusintha PCM kapena ECM

Vuto lalikulu

• Kusintha valavu yochepetsetsa yoyeretsa, DEF, PCM, kapena ECM ikamagwiritsa ntchito zingwe zolakwika zimayambitsa nambala iyi.

Tikukhulupirira kuti zambiri zomwe zatchulidwa m'nkhaniyi zakuthandizani kukulozerani njira yoyenera kuti muthe kusokoneza vuto la DTC yoyendetsa valavu yoyeserera. Nkhaniyi ndi yongofuna kudziwa zambiri komanso ma data aukadaulo a galimoto yanu ayenera kukhala patsogolo nthawi zonse.

Zokambirana zokhudzana ndi DTC

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

Mukufuna thandizo lina ndi nambala ya P20A4?

Ngati mukufunabe thandizo ndi DTC P20A4, 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.