Hloov ntawm Nissan Qashqai sojntsuam teeb

Lambda sojntsuam (DC) yog ib qho ntawm cov khoom tseem ceeb ntawm cov pa tawm ntawm cov tsheb niaj hnub. Cov ntsiab lus tau tshwm sim nrog kev nruj nruj ntawm ib puag ncig cov cai, lawv txoj haujlwm yog txhawm rau txhim kho cov pa oxygen hauv cov pa tso pa, uas tso cai rau koj los txiav txim siab qhov zoo ntawm cov pa roj sib tov thiab tshem tawm qhov nce hauv roj noj.

Lambda probes (muaj ob tug ntawm lawv) yog siv nyob rau hauv tag nrho cov Nissan Qashqai qauv, nrog rau thawj tiam. Hmoov tsis zoo, dhau sijhawm, lub sensor tuaj yeem ua tsis tiav. Nws kev kho dua tshiab yog ib qho kev daws teeb meem tsis zoo; nws yog qhov txhim khu kev qha ntau dua los ua kom tiav kev hloov pauv.

22693-JB 70 AB

Bosch 0986AG2203-2625r Tshav kub siab oxygen sensor.

Bosch 0986AG2204 - 3192r rear oxygen sensor.

22693-JG70A - yuav los ntawm AliExpress - $ 30

Thawj oxygen sensor yog nyob rau hauv lub intake manifold.

Kev tawg loj

Sensor defects feem ntau yog qhia raws li hauv qab no:

• tawg ntawm cov khoom cua sov;

• hlawv ntawm lub hau ceramic;

• tiv tauj oxidation, tsim ntawm corrosion, ua txhaum ntawm tus thawj hluav taws xob conductivity.

Qhov tsis ua haujlwm ntawm qhov kev sojntsuam tuaj yeem yog vim lub sijhawm ua haujlwm ntawm lub neej. Rau Qashqai, tus nqi no yog kwv yees li 70 txhiab mais.

Cov xwm txheej tau txiav txim los ntawm lub tsheb tus kheej qhov system.

Cov tsos ntawm ib tug malfunction tam sim ntawd ua rau lub activation ntawm lub LED ntawm lub ntsuas vaj huam sib luag.

Nws yuav tsum nco ntsoov tias kev sib txawv hauv kev ua haujlwm, tsis ncaj qha qhia qhov ua haujlwm tsis zoo ntawm lub sensor, kuj tseem tuaj yeem cuam tshuam nrog lwm cov qauv ntawm cov roj thiab cov pa tawm. Nws yuav tuaj yeem txiav txim siab qhov laj thawj tiag tiag nrog kev pab ntawm kev kuaj mob. Failure txhais

Cov hauv qab no qhia txog qhov tsis ua haujlwm sensor:

• nce kev siv roj ntau ntxiv;

• lub cev muaj zog instability, tsis tu ncua "floating" ceev;

• thaum ntxov tsis ua hauj lwm ntawm cov catalyst vim nws clogging nrog combustion khoom;

• dhia thaum lub tsheb txav;

• tsis muaj zog, qeeb acceleration;

• ncua sij hawm ntawm lub cav idling;

• Tom qab nres ntawm thaj chaw uas lub lambda sojntsuam nyob, lub suab nrov;

• Kev tshuaj xyuas qhov pom ntawm lub sensor tam sim ntawd tom qab nres qhia tias nws kub liab.

Ua rau breakage

Raws li kev txheeb cais ntawm Nissan Qashqai cov chaw pabcuam, feem ntau ua rau qhov tsis ua haujlwm yog:

• Cov roj tsis zoo, cov ntsiab lus siab ntawm impurities. Qhov txaus ntshai tshaj plaws rau cov khoom yog txhuas thiab nws cov khoom sib xyaw.

• Kev sib cuag lub cev nrog cov tshuaj tiv thaiv kab mob los yog cov dej nres ua rau oxidation ntau, kub hloov pauv, nto thiab kev puas tsuaj.

• sim ntxuav tus kheej siv cov tshuaj tsis haum.

Purge

Ntau tus tswv Nissan Qashqai nyiam ntxuav lub sensor ntau dua li hloov nws nrog qhov tshiab. Feem ntau, txoj hauv kev no yog qhov tsim nyog yog tias qhov ua rau tsis ua haujlwm yog muaj kuab paug nrog cov khoom siv hluav taws xob.

Yog tias qhov zoo li qub rau sab nraud, tsis muaj qhov pom kev puas tsuaj rau nws, tab sis soot pom tau, ces kev ntxuav yuav tsum pab.

Koj tuaj yeem tshem nws zoo li no:

• Lub ntsiab active ingredient yog phosphoric acid, uas zoo kawg nkaus dissolves carbon deposits thiab xeb. Cov txheej txheem tu tshuab tsis tuaj yeem lees txais, cov ntawv xuab zeb lossis txhuam hlau tuaj yeem ua rau puas tsuaj mus tas li.

• Cov txheej txheem ntxuav nws tus kheej yog ua raws li qhov ntsuas qhov ntsuas ntawm phosphoric acid rau 15-20 feeb thiab tom qab ntawd ziab nws. Yog hais tias tus txheej txheem tsis pab, muaj tsuas yog ib txoj kev tawm - ib tug hloov.

Kev Hloov

Hloov lub lambda sojntsuam rau Nissan Qashqai yog qhov yooj yim heev, vim hais tias ib feem yog nyob rau hauv cov pa manifold thiab qhov no ua rau nws yooj yim rau kev nkag.

Ua ntej hloov, nws yog ib qho tsim nyog los ua kom sov lub zog cog kom zoo, qhov thermal expansion ntawm cov hlau ua rau nws yooj yim rau disconnect ib feem ntawm lub manifold.

Cov lus qhia zoo li no:

• Kaw lub cav, kaw lub ignition.

• Disconnecting cables.

• Tshem tawm qhov ua tsis tau tejyam nrog lub qhov (socket) lossis ciaj ntswj, nyob ntawm seb hom sensor.

• Kev txhim kho lub caij tshiab. Nws yuav tsum tau screwed nyob rau hauv kom txog rau thaum nws nres, tab sis tsis muaj siab heev, uas yog fraught nrog mechanical puas.

• Txuas cov cables.

Qhov zoo tshaj plaws, muab cov thawj Nissan sensors. Tab sis, thaum nws tsis tuaj, lossis xav tau ceev ceev kom txuag nyiaj, koj tuaj yeem siv cov analogues los ntawm German tuam txhab Bosch.

Lawv tau ua pov thawj lawv tus kheej zoo nrog cov tswv ntawm Kashkaev, lawv ua haujlwm zoo kawg nkaus thiab muaj kev pabcuam lub neej zoo ib yam li thawj.

Tej zaum koj yuav txaus siab rau:

Txhim kho lub xov tooj cua Nissan Qashqai 2din Hloov lub tank nthuav dav nrog Nissan Qashqai: yuav hloov dab tsi Hloov lub hauv ntej struts Nissan Qashqai Lub suab teeb liab tsis ua hauj lwm ntawm Nissan Qashqai Yuav ua li cas los xyuas qhov kev khiav hauj lwm ntawm lub rhaub cua sov thiab hloov nws hloov pem hauv ntej lever nrog Nissan Qashqai Hloov lub rear ntsiag to block ntawm Nissan Qashqai pem hauv ntej lever Hloov coils ignition nissan qashqai