P20A4 Reductant purge control valve e lula e butsoe

P20A4 Reductant purge control valve e lula e butsoe

Lethathamo la lintlha tsa OBD-II DTC

Phokotso ea phepelo ea "purge control purge" e lula e butsoe

See se bolela eng?

Ena ke khoutu ea bothata ba tlhahlobo ea "powertrain" e sebetsang ho likoloi tse ngata tsa disele tsa OBD-II (1996 ho fihlela joale). Sena se ka kenyelletsa, empa ha se felle feela ho, Chevrolet, GMC, Ford, Mitsubishi, VW, Sprinter, Audi, jj. Leha ho le joalo ka tlhaho, mehato e nepahetseng ea ho lokisa e ka fapana ho latela selemo sa mohlala, sebopeho, phetisetso le phetiso.

OBD-II DTC P20A4 le likhoutu tse amanang le tsona P20A0, P20A1, P20A2, P20A3, le P20A5 li amahanngoa le potoloho ea "valve" ea "red purant control valve". Potoloho ena e tsejoa hape e le Dizeli Exhaust Liquid (DEF).

Morero oa li-circule tsa valve tse fokotsang ke ho romella lets'oao ho module ea taolo ea matla (PCM) kapa module ea taolo ea enjene (ECM) e le sebaka sa ho supa hore na pompo e fokotsang e hloka ho khutlisa phallo le ho hloekisa sistimi ea DEF. Ts'ebetso ena e sebelisoa ho thusa ho fetolela likaroloana tsa mosi o setseng ho ba likhase tse se nang kotsi. Sisteme ea DEF e etselitsoe ho fetola likhase tse kotsi tsa NOx hore e be naetrojene, carbon dioxide le metsi ho sireletsa tikoloho.

Ha PCM kapa ECM e lemoha hore valve e fokotsang ea "purge control valve" e lula e butsoe, P20A4 e tla beha mme lebone la enjene ea cheke le tla bonesa.

Mak'henike:

Boima ba DTC ee ke bofe?

Boima ba khoutu ena hangata bo itekanetse, empa P20A4 e ka ba mpe haeba likhase tse kotsi li tlosoa mokhatlong o etsang hore e be taba ea polokeho e hlokang tlhokomelo e potlakileng.

A mang a matšoao a khoutu ke afe?

Matšoao a P20A4 khoutu ea mathata a ka kenyelletsa:

• Ts'ebetso e mpe ea enjene
• Phokotso ea moruo oa mafura
• Leseli la enjene ea ho hlahloba le laetse

A mang a mabaka a tloaelehileng a khoutu ke afe?

Mabaka a khoutu ena ea P20A4 a ka kenyelletsa:

• Fokotsa moemeli purge taolo belofo haelloang
• Wiring e fosahetseng kapa e senyehileng
• Taolo ea mochini oa taolo o hlephileng kapa o senyehileng
• Sehokelo se senyehileng, se senyehileng kapa se hlephileng
• Fuse e nang le phoso kapa jumper (haeba ho hlokahala)
• PCM e nang le phoso kapa ECM

Mehato ea P20A4 ea ho rarolla mathata ke efe?

Mohato oa pele oa ho rarolla bothata bofe kapa bofe ke ho lekola li-Bulletins (TSBs) tse ikhethileng tsa koloi ka selemo, mohlala le phepelo ea motlakase. Maemong a mang, sena se ka u bolokela nako e telele ka ho u supisa tsela e nepahetseng.

Mohato oa bobeli ke ho fumana likarolo tsohle tse amanang le reductant purge control valve circuit le ho sheba tšenyo e totobetseng ea 'mele. Ho itšetlehile ka koloi e khethehileng, tsamaiso ea DEF e ka kenyelletsa likarolo tse 'maloa, ho kenyelletsa le pompo ea motlakase e fokotsang motlakase, valve ea ho hloekisa, sensor ea khatello, sensor ea boemo bo lekaneng, sensor ea mocheso, li-heaters tsa tsamaiso, li-filters, injector e laoloang ka motlakase e laoloang ke motlakase, le letamo. Etsa tlhahlobo e phethahetseng ea pono ho hlahloba mehala e amanang le eona bakeng sa mefokolo e totobetseng joalo ka mengoapo, makhopho, mehala e pepeneneng, kapa matšoao a cheleng. Ka mor'a moo, hlahloba lihokelo le likhokahano bakeng sa ts'ireletso, kutu le tšenyo ho likhokahano. Ts'ebetso ena e lokela ho kenyelletsa likhokahano tsohle tsa likhoele le likhokahano ho likarolo tsohle ho kenyelletsa PCM kapa ECM. Sheba leqephe le khethehileng la lintlha tsa tekheniki bakeng sa koloi ho bona hore na fuse kapa sehokelo sa fuse se kenyelelitsoe potolohong.

Mehato e tsoetseng pele

Mehato ea tlatsetso e ba koloi e ikhethang 'me e hloka hore lisebelisoa tse tsoetseng pele tse loketseng li etsoe ka nepo. Ts'ebetso tsena li hloka litokomane tsa dijithale tsa multimeter le tse ikhethileng tsa koloi. Boemong bona, tekanyo ea khatello le eona e ka hlokahala ho tsamaisa ts'ebetso ea ho rarolla mathata.

Teko ea Voltage

Mefuta ea litšupiso le mefuta e lumelletsoeng e ka fapana ho latela koloi e itseng le phetolo ea potoloho. Lintlha tse ikhethileng tsa tekheniki li tla kenyelletsa litafole tsa ho rarolla mathata le tatellano e nepahetseng ea mehato ho u thusa ho fumana tlhahlobo e nepahetseng.

Haeba ts'ebetso ena e fumana hore mohloli oa motlakase kapa mobu ha o eo, ho ka hlokahala hore ho hlahlojoe ho tsoela pele ho netefatsa bonnete ba wiring, likhokelo le lisebelisoa tse ling. Liteko tsa tsoelo-pele li lokela ho lula li etsoa ka motlakase o khaohantsoeng le potoloho, 'me ho bala ho tloaelehileng bakeng sa wiring le likhokelo e lokela ho ba 0 ohms ea ho hanyetsa. Ho hanyetsa kapa ho se tsoele pele ho bonts'a wiring e fosahetseng e bulehileng kapa e khutsufalitsoeng mme e hloka ho lokisoa kapa ho nchafatsoa. Ho etsa liteko tsa tsoelo-pele ho tloha ho PCM kapa ECM ho ea ho foreimi ho tla netefatsa bots'epehi ba marapo a mobu le likhoele tsa fatše. Ho hanyetsa ho bonts'a khokahano e hlephileng kapa ts'enyeho e ka bang teng.

Ke mekhoa efe e metle ea ho lokisa khoutu ee?

• Ho kenya sebaka sa Reductant Purge Control Valve
• Ho hloekisa likhokelo ho tsoa ts'enyehong
• Lokisa kapa u tlose mohala o fosahetseng
• Ho nchafatsa fuse kapa fuse (haeba ho hlokahala)
• Ho lokisa kapa ho khutlisa litheipi tse fosahetseng tsa motheo
• Ho bonesa kapa ho tlosa PCM kapa ECM

Phoso e akaretsang

• Ho tlosa valve e fokotsang ea purge control, e amanang le DEF, PCM, kapa ECM ha mohala o fosahetseng o baka khoutu ena.

Rea ts'epa hore tlhaiso-leseling e ho rona e u thusitse ho u supisa tsela e nepahetseng ea ho rarolla bothata ba potoloho ea phepelo ea phepelo ea phepelo ea phepelo ea DTC. Sengoloa sena se etselitsoe tlhaiso-leseling feela mme lintlha tse ikhethang tsa tlhaiso-leseling le lintlha tsa ts'ebeletso bakeng sa koloi ea hau li lokela ho lula li etelletsa pele.

Lipuisano tse amanang tsa DTC

• Hajoale ha ho na lihlooho tse amanang le tsona liforumong tsa rona. Romella sehlooho se secha foromong hona joale.

U hloka thuso e eketsehileng ka khoutu ea P20A4?

Haeba o ntse o hloka thuso ka DTC P20A4, ​​beha potso litlatsong tse ka tlase ho sengoloa sena.

HLOKOMELA. Tlhahisoleseling ena e fanoa molemong oa tlhaiso-leseling feela. Ha ea rereloa hore e sebelisoe joalo ka khothaletso ea tokiso mme ha re na boikarabello bakeng sa ketso efe kapa efe eo u e nkang koloing efe kapa efe. Lintlha tsohle tse fumanehang sebakeng sena sa marang-rang li sirelelitsoe ka litokelo tsa bangoli.