Momwe mungayeretsere kafukufuku wa lambda

Sensa ya okosijeni (aka lambda probe) iyenera kudziwa kuchuluka kwa okosijeni waulere mumipweya yotulutsa mpweya wa injini yoyaka mkati. Izi zimachitika chifukwa cha O2 analyzer yomwe imapangidwira momwemo. Sensa ikatsekedwa ndi mwaye wosayaka, zomwe zimaperekedwa ndi izo zidzakhala zolakwika.

Ngati mavuto a lambda azindikirika atangoyamba kumene, kubwezeretsa sensor ya okosijeni kumathandizira kukonza. Kudziyeretsa nokha kwa kafukufuku wa lambda kumakupatsani mwayi kuti mubwezeretsenso ntchito yake ndikuwonjezera moyo wake. Koma izi sizowona muzochitika zonse, ndipo kugwira ntchito kumadalira njira zomwe zimagwiritsidwa ntchito komanso njira yogwiritsira ntchito. Ngati mukufuna kudziwa ngati kuyeretsa kafukufuku wa lambda kumathandiza ndi zovuta zosiyanasiyana, momwe mungayeretsere kuchokera ku mwaye ndi momwe - werengani nkhaniyi mpaka kumapeto.

Chiyembekezo cha kafukufuku wa lambda ndi pafupifupi makilomita 100-150, koma chifukwa cha zowonjezera mafuta, mafuta otsika kwambiri, kutentha kwa mafuta ndi mavuto ena, nthawi zambiri amachepetsedwa kufika 40-80 zikwi. Chifukwa cha ichi, ECU sangathe kumwa petulo molondola, osakaniza amakhala Taphunzira kapena wolemera, injini akuyamba kuthamanga osagwirizana ndi amataya kukopa, pa gulu zolakwa "Chongani injini".

Mavuto Odziwika Oxygen Sensor

kuwonongeka kwa kafukufuku wa lambda, malinga ndi opanga, sikungathetsedwe, ndipo ngati kulephera kuli kofunikira kusintha kwatsopano kapena kuyika nsonga. Komabe, muzochita, ngati muwona vuto la kugwira ntchito mu nthawi, mukhoza kuwonjezera moyo wake pang'ono. Ndipo osati chifukwa cha kuyeretsa, komanso ndi kusintha khalidwe la mafuta. Ngati tikulankhula za kuipitsa, ndiye kuti mutha kuyeretsa kafukufuku wa lambda kuti ayambe kuwerengera molondola.

Ndi bwino kutsitsimutsa lambda kokha pambuyo diagnostics koyambirira ndi kutsimikizira, chifukwa n'zotheka kuti izi zidzangokhala kutaya nthawi.

Mavuto ndi sensa ya okosijeni amasonyezedwa ndi zolakwika kuchokera ku P0130 mpaka P0141, komanso P1102 ndi P1115. The decoding aliyense wa iwo mwachindunji zimasonyeza chikhalidwe cha kusokonekera.

Kuyang'ana pa zomwe zimayambitsa, kutengera zomwe zidayambika poyang'ana sensor ya okosijeni, zitha kutheka kunena ngati pali mfundo yoyeretsa.

Zizindikiro za kuwonongeka kwa LZ	Chifukwa chiyani izi zikuchitika	Kodi galimotoyo imakhala bwanji?
Depressurization ya Hull	Kuvala kwachilengedwe ndi kutenthedwa kwa sensor	Mavuto ndi XX, osakaniza olemera amalowa mkati mwa injini yoyaka moto, mafuta amawonjezeka, fungo lamphamvu kuchokera ku utsi.
Sensor kutenthedwa	Zimachitika ndi kuyatsa kolakwika: ndi koyilo yosweka kapena mawaya, osagwirizana molakwika kapena makandulo odetsedwa.	Mavuto ndi XX, zinthu zoyaka moto zimayaka munjira yotulutsa mpweya, kugunda kwa injini, kutayika kwamphamvu, kuwombera mu muffler, ma pops mukumwa ndizotheka.
Kutsekeka kwa nyumba	Zimachitika chifukwa chowonjezera mafuta ndi mafuta otsika kwambiri kapena kudzikundikira kwa ma depositi chifukwa cha mtunda wautali wagalimoto.	Kusakhazikika kwa injini yoyatsira mkati, kutayika kwamphamvu, kuchuluka kwamafuta, kununkhira kwamphamvu kwa chitoliro chotulutsa.
Wiring wowonongeka	Mawaya amawola, amasweka ndi kuzizira, akabudula mpaka pansi, etc.	Kugwira ntchito kosakhazikika kwa injini popanda ntchito, kutayika pang'ono kwa kuyankha kwa injini ndi kuyendetsa, kuwonjezeka kwa mtunda wa gasi
Kuwonongeka kwa gawo la ceramic la LZ	Pambuyo kugunda sensa, mwachitsanzo, pambuyo pa ngozi, kukhudza chopinga ndi ziwalo zotulutsa mpweya, kapena kukonza mosasamala kwa thirakiti la utsi.	Kugwira ntchito kosasunthika pakuchita zopanda pake, katatu, kuchuluka kwa mowa, kutayika kwa mphamvu

Monga mukuwonera, mitundu yonse yamavuto a sensa ya okosijeni imawoneka ngati zofanana. Ichi ndi chifukwa chakuti ngati lambda kupatsira deta yolakwika pa zikuchokera osakaniza ku ECU, "ubongo" amayamba molakwika mlingo mafuta ndi kulamulira nthawi poyatsira. Ngati palibe chizindikiro chochokera ku sensa konse, ECU imayika injini yoyaka mkati mumayendedwe opangira mwadzidzidzi ndi magawo "avareji".

Ngati diagnostics sanaulule vuto mawotchi ndi sensa (gawo wosweka, deformations, ming'alu), koma kokha kuipitsidwa koyambirira kwa Kutentha mbali yake kapena tcheru chinthu palokha, mukhoza kuyesa kubwezeretsa. Koma musanayambe kuyeretsa sensa ya okosijeni kuchokera ku carbon madipoziti, muyenera kuonetsetsa kuti mawaya ake akugwira ntchito (mwina adzakhala okwanira kuthetsa dera lotseguka, kuyeretsa kulankhula kapena m'malo chip), komanso ntchito yachibadwa ya poyatsira dongosolo.

Kodi ndizotheka kuyeretsa lambda?

Kubwezeretsanso ntchito ya sensa ya okosijeni m'magalasi ndizotheka ngati tikulankhula za kuipitsidwa kwake ndi ma depositi kuchokera kuzinthu zoyaka mafuta. Ndizopanda ntchito kuyeretsa sensa yosweka mwakuthupi, iyenera kusinthidwa. Mukapeza kafukufuku wa lambda wodetsedwa, kutulutsa mpweya kumabwezeretsanso moyo. Kodi ndizotheka kuyeretsa kafukufuku wa lambda sikoyenera kuda nkhawa. Popeza sensayi idapangidwa kuti igwire ntchito m'malo owopsa a mpweya wotentha, sikuwopa kutentha, kutsuka ndi mankhwala ena oyambitsa. Pokhapokha kuti musankhe njira zomwe kuyeretsa kungathe kuchitidwa mosamala kwambiri, zidzakhala zofunikira kudziwa mtundu wa sensa.

Chophimba chachitsulo cha silvery pa ntchito ya sensa chimasonyeza kukhalapo kwa lead mu mafuta. Gwero lake lalikulu ndi chowonjezera cha TES (tetraethyl lead), chomwe chimapha chothandizira ndi ma probe a lambda. Kugwiritsa ntchito kwake ndikoletsedwanso, koma kumatha kugwidwa mumafuta "oyaka". Katswiri wa okosijeni wowonongeka ndi mtovu sangathe kubwezeretsedwa!

Musanayambe kuyeretsa lambda sensa kuchokera ku carbon deposits, dziwani mtundu wake. Pali mitundu iwiri yofunikira:

Kumanzere zirconia, titaniyamu kumanja

• Zirconia. Magetsi amtundu wa Galvanic omwe amapanga magetsi panthawi yogwira ntchito (kuchokera ku 0 mpaka 1 volt). Masensa awa ndi otsika mtengo, odzichepetsa, koma amasiyana molondola kwambiri.
• Titaniyamu. Masensa amtundu wa Resistive omwe amasintha kukana kwa chinthu choyezera pakugwira ntchito. Mphamvu yamagetsi imagwiritsidwa ntchito pa chinthu ichi, chomwe chimachepa chifukwa cha kukana (chimasiyanasiyana mkati mwa 0,1-5 volts), potero chimasonyeza kusakaniza. Masensa oterewa ndi olondola, odekha komanso okwera mtengo.

Ndizotheka kusiyanitsa kafukufuku wa zirconium lambda (sensa ya okosijeni) kuchokera ku titaniyamu mowoneka, molingana ndi njira ziwiri:

• kukula. Masensa a titaniyamu okosijeni amakhala ophatikizika komanso amakhala ndi ulusi wocheperako.
• Mawaya. Masensa amasiyana ndi mitundu ya kuluka: kukhalapo kwa mawaya ofiira ndi achikasu kumatsimikiziridwa kusonyeza titaniyamu.

Ngati simungathe kudziwa mtundu wa kafukufuku wa lambda, yesani kuwerenga cholembapo ndikuchiyang'ana molingana ndi kabukhu la wopanga.

Kuyeretsa lambda ku kuipitsa kumachitika ndi zinthu zina zowonjezera, monga ma acid ndi organic solvents. Masensa a Zirconium, pokhala osamva bwino, amatha kutsukidwa ndi zidulo zaukali komanso zosungunulira, pomwe masensa a titaniyamu amafunikira kuwongolera mofatsa. Ndizotheka kuchotsa ma depositi a kaboni pa lambda ya mtundu wachiwiri pokhapokha ndi asidi wochulukirapo kapena zosungunulira organic.

Kodi ndingayeretse bwanji kafukufuku wa lambda

Posankha momwe mungayeretsere kafukufuku wa lambda kuchokera ku ma depositi a kaboni, muyenera kutaya nthawi yomweyo zinthu zankhanza zomwe zimawononga sensa. Kutengera mtundu wa sensor, izi zikuphatikiza:

• kwa zirconium oxide (ZrO2) - hydrofluoric acid (hydrogen fluoride solution HF), sulfuric acid (zoposa 70% H2SO4) ndi alkalis;
• kwa titaniyamu okusayidi (TiO2) - sulfuric acid (H2SO4), hydrogen peroxide (H2O2), ammonia (NH3), ndi osafunika kuvumbula kachipangizo kutentha pamaso pa chlorine (mwachitsanzo, mu hydrochloric asidi HCl), magnesium. , calcium, ceramics amatha kuchita nawo.

Ndikofunikiranso kugwiritsa ntchito zinthu zomwe zimakhala ndi mankhwala komanso zankhanza pokhudzana ndi ma depositi a kaboni, koma osalowererapo - pokhudzana ndi sensa yokha. Pali njira zitatu zoyeretsera ma depositi a kaboni pa sensa ya okosijeni:

Orthophosphoric acid yoyeretsa lambda probe

• inorganic zidulo (sulfuric, hydrochloric, orthophosphoric);
• organic zidulo (acetic);
• organic solvents (ma hydrocarbons owala, dimexide).

Koma kuyeretsa lambda probe ndi asidi asidi kapena kuyesa kuchotsa madipoziti ndi matope asidi citric adzakhala kwathunthu opanda pake. Werengani pansipa kuti mudziwe momwe mungayeretsere sensor ya lambda ndi mankhwala osiyanasiyana.

Dzichitireni nokha lambda probe kuyeretsa

kotero kuti kuyeretsa kafukufuku wa lambda kunyumba sikukutengerani nthawi yochuluka, mutha kuyang'ana patebulo pazomwe mukuyembekezera komanso nthawi yomwe mukugwiritsa ntchito chida chimodzi kapena china. Izi zidzakuthandizani kudziwa momwe mungayeretsere sensa ya okosijeni ndi manja anu.

Njira	chifukwa	Nthawi Yoyeretsa
Carb zotsukira (carburetor ndi throttle zotsukira), organic solvents (parafini, acetone, etc.)	Adzapita kupewa, sakulimbana bwino ndi mwaye	Madipoziti wandiweyani samatsukidwa konse, koma kuthamangitsa mwachangu kumakupatsani mwayi wotsuka ma depositi ang'onoang'ono mutangoyamba kumene.
Dimexide	Kuchita bwino kwapakati	Imatsuka ma depositi opepuka mu mphindi 10-30, yofooka motsutsana ndi ma depositi olemetsa
Zachilengedwe		Amatsuka osati kuipitsa kolemera kwambiri, koma kwa nthawi yayitali, sagwira ntchito motsutsana ndi mwaye wandiweyani.
Orthophosphoric acid	Amachotsa madipoziti bwino	Nthawi yayitali, kuyambira mphindi 10-30 mpaka tsiku
Sulfuric acid		Kuyambira mphindi 30 mpaka maola angapo
Hydrochloric acid

Kuti mutsuke kafukufuku wa lambda kunyumba kuti musadzivulaze, mufunika magolovesi a rabara (nitrile) ndi magalasi omwe amakwanira bwino kumaso kwanu. Chopumira sichidzasokonezanso, chomwe chidzateteza ziwalo zopuma ku utsi woipa.

Kuyeretsa bwino sensor ya okosijeni sigwira ntchito popanda zida zotere:

Momwe mungayeretsere kafukufuku wa lambda - kanema wokhala ndi njira yoyeretsera

• zotengera galasi kwa 100-500 ml;
• chowumitsira tsitsi chomwe chimatha kutulutsa kutentha kwa madigiri 60-80;
• burashi yofewa.

Musanayambe kuyeretsa lambda probe sensor, ndikofunikira kuti mutenthetse mpaka kutentha pang'ono pansi pa madigiri 100. Ndicho chimene chowumitsira tsitsi chimapangidwira. Sikoyenera kugwiritsa ntchito moto wotseguka, chifukwa kutentha kwambiri kumawononga sensa. Ngati mupita patali kwambiri ndi kutentha, kuyeretsa kotereku kwa lambda ndi manja anu kumatha ndi kugula gawo latsopano!

Masensa ena a okosijeni ali ndi chivundikiro choteteza chomwe sichikhala ndi mipata yayikulu yolepheretsa mwayi wopita ku ntchito ya ceramic ndi leaching ya carbon deposits. Kuti muchotse, musagwiritse ntchito macheka, kuti musawononge zoumba! Pazipita kuti mungachite mu nkhani iyi ndi kupanga mabowo angapo mu casing, kuonetsetsa chitetezo.

Phosphoric acid kuyeretsa

Kuyeretsa zirconium lambda probe pogwiritsa ntchito chosinthira dzimbiri

Kuyeretsa lambda ndi phosphoric acid ndi njira yotchuka komanso yothandiza. Acid iyi ndi yaukali kwambiri, chifukwa chake imatha kuwola ma depositi a kaboni ndi ma depositi ena popanda kuwononga sensa yokha. Chidulo chokhazikika (choyera) ndi choyenera kwa zirconium probes, pamene asidi amadzimadzi ndi abwino kwa titaniyamu probes.

Itha kugwiritsidwa ntchito osati mu mawonekedwe ake oyera (ovuta kupeza), komanso omwe ali mumankhwala aukadaulo (soldering acid, acid flux, dzimbiri converter). Musanayambe kuyeretsa sensa ya okosijeni ndi asidi wotere, iyenera kutenthedwa (onani pamwambapa).

Kuyeretsa kafukufuku wa lambda ndi chosinthira dzimbiri, kutsekemera kapena phosphoric acid kumakhala ndi izi:

1. Lembani mtsuko wagalasi ndi asidi wokwanira kuti mulowetse sensa ya lambda mwa kusema.
2. Sensa yamadzi kumaliza ntchito kukhala asidi, kusiya mbali yake yakunja pamwamba pa madzi, ndi konzani pamalo awa.
3. Thirani sensor mu asidi kuyambira mphindi 10-30 (ngati mwaye ndi wawung'ono) mpaka maola 2-3 (kuipitsa kwakukulu), ndiye mutha kuwona ngati asidi watsuka ma depositi a kaboni.
4. Kuti mufulumizitse njirayi, mutha kutentha chidebe chamadzimadzi pogwiritsa ntchito chowumitsira tsitsi kapena chowotcha gasi ndi kusamba madzi.

Orthophosphoric kapena orthophosphate acid siwowopsa kwambiri, koma imatha kukwiyitsa khungu ndi mucous nembanemba. Choncho, pofuna chitetezo, muyenera kugwira ntchito ndi magolovesi, magalasi ndi zopumira, ndipo ngati zifika pathupi, muzitsuka ndi madzi ambiri ndi soda kapena sopo.

Kuwotcha kaboni madipoziti pa sensa mpweya pambuyo kuyeretsa ndi asidi

Njira yachiwiri yoyeretsera kafukufuku wa lambda ndi asidi ndi moto:

1. Sunkhirani sensa ndi gawo logwira ntchito mu asidi.
2. Mwachidule bweretsani ku moto, kuti asidi ayambe kutentha ndi kusanduka nthunzi, ndipo zomwe zimathamanga.
3. Nthawi ndi nthawi zilowerere sensa mu asidi kuti akonzenso filimu ya reagent.
4. Mukanyowetsa, tenthetsaninso pa chowotcha.
5. Pamene madipoziti achoka, yambani mbaliyo ndi madzi oyera.

Njirayi iyenera kuchitidwa mosamala, osabweretsa sensa pafupi kwambiri ndi chowotcha. Sensa sinapangidwe kuti igwire ntchito ndi kutentha pamwamba pa 800-900 madigiri ndipo ikhoza kulephera!

Yankho la funso ngati lambda akhoza kutsukidwa ndi asidi phosphoric zimadalira mchitidwe wa kuipitsidwa. Mwayi wotsuka ma depositi a kuwala ndi waukulu kwambiri, ndipo zolembera zolimba sizingachapitsidwe mosavuta. Kapena muyenera kuvina kwa nthawi yayitali (mpaka tsiku), kapena kugwiritsa ntchito kutentha mokakamiza.

Kuyeretsa ndi carburetor zotsukira

Kuyeretsa lambda ndi carburetor ndi throttle cleaner ndi njira wamba, koma osati yothandiza ngati asidi. Zomwezo zimagwiranso ntchito kwa zosungunulira za organic monga mafuta, acetone, omwe amatsuka dothi lopepuka kwambiri. Carbcleaner ndi yabwino pankhaniyi chifukwa cha maziko ake aerosol ndi kuthamanga kwake, komwe kumagwetsa tinthu tating'onoting'ono, koma yankho la funso ngati n'zotheka kuyeretsa lambda kafukufuku wa oyeretsa carburetor nthawi zambiri amakhala oipa. Madipoziti ang'onoang'ono okha ndi omwe amachapitsidwa, ndipo uku ndikungosangalatsa.

Kuchiza koteroko kungagwiritsidwe ntchito nthawi ndi nthawi pofuna kuteteza, kutsuka ma depositi opepuka kuchokera pamene angoyamba kupanga.

Kuyeretsa kafukufuku wa lambda ndi sulfuric acid

Kuyeretsa kafukufuku wa lambda ndi sulfuric acid ndi njira yowopsa, koma yothandiza kwambiri yochotsera ma depositi akuluakulu a carbon kuchokera pamwamba pa sensa. Musanatsuke kafukufuku wa lambda kunyumba, muyenera kuyipezanso mumagulu a 30-50%. Electrolyte ya mabatire ndi yoyenera, yomwe ili ndi ndondomeko yoyenera ndipo imagulitsidwa m'magalimoto ogulitsa magalimoto.

Sulfuric acid ndi chinthu choopsa chomwe chimasiya kutentha kwa mankhwala. Muyenera kugwira ntchito ndi magolovesi, magalasi ndi mpweya wopumira. Pankhani yokhudzana ndi khungu, malo oipitsidwa ayenera kutsukidwa kwambiri ndi soda 2-5% kapena madzi a sopo kuti athetse asidi, ndipo ngati mukukumana ndi maso kapena kutentha kwakukulu, funsani dokotala mwamsanga mutatha. kusamba.

Pogwiritsa ntchito chotsuka chotsuka cha asidi cha lambda, mutha kupambana ngakhale kulimbana ndi zonyansa zomwe sizimachotsedwa ndi njira zina. Njira yoyeretsera ili motere:

1. Jambulani asidi muchombo mpaka mulingo womwe umakulolani kuti mumize sensor pa ulusi.
2. Miwiritsani sensa ndikuyikonza molunjika.
3. Zilowerereni kafukufuku wa lambda mu asidi kwa mphindi 10-30, ndikuyambitsa nthawi zina.
4. Ndi kuipitsidwa kosalekeza - onjezerani nthawi yowonekera kwa maola 2-3.
5. Pambuyo poyeretsa, yambani ndikupukuta sensa.

Mutha kufulumizitsa ntchitoyi potenthetsa, koma pewani kutenthedwa ndi kutulutsa asidi.

Hydrochloric acid imagwira ntchito mofananamo, koma imakhalanso yaukali, chifukwa chake imagwiritsidwa ntchito mopanda mphamvu ndipo imafunikira chisamaliro chowonjezereka pogwira. Hydrochloric acid imapezeka, mwachitsanzo, muzitsulo zina zotsukira.

Yankho la funso ngati n'zotheka kuyeretsa kafukufuku wa lambda ndi sulfuric acid kapena hydrochloric acid ndi zabwino zokhazokha za zirconium oxygen sensors. Hydrochloric acid ndi contraindicated kwa titaniyamu DC (titanium okusayidi imakumana ndi chlorine), ndipo sulfuric acid amaloledwa kokha mu ndende yotsika (pafupifupi 10%).kumene sizothandiza kwambiri.

Kuyeretsa kafukufuku wa lambda ndi dimexide

Njira yofatsa ndikuyeretsa sensa ya okosijeni ndi dimexide, mankhwala a dimethyl sulfoxide omwe amakhala ndi zosungunulira zamphamvu. Sichitapo kanthu ndi zirconium ndi titaniyamu oxides, choncho ndi yoyenera kwa mitundu yonse ya DC, pamene ikutsuka ma carbon deposits.

Dimexide ndi mankhwala omwe ali ndi mphamvu zolowera mkati, momasuka kudutsa ma cell. Ndizotetezeka zokha, koma zimanunkhiza mwamphamvu ndipo zimatha kulola kuti zinthu zovulaza zilowe m'thupi kuchokera ku madipoziti pa sensa ya okosijeni. Ndikofunikira kugwira naye ntchito mu magolovesi azachipatala ndi chopumira kuti muteteze khungu ndi kupuma.

Kuyeretsa kafukufuku wa lambda ndi dimexide kumayamba ndikukonzekera zotsukira, zomwe zimayamba kunyezimira pa kutentha kwa +18 ℃. Kuti muchepetse, muyenera kutenga botolo la mankhwalawa ndikutenthetsa mu "kusamba kwamadzi".

Zotsatira za kuyeretsa ndi dimexide pambuyo pa mphindi 20

Ndikoyenera kuyeretsa kafukufuku wa lambda ndi dimexide mofanana ndi pamene mukugwiritsa ntchito ma acid, koma iyenera kutenthedwa nthawi ndi nthawi. Ndikofunikira kuviika gawo logwira ntchito la sensa ya okosijeni muchombo ndi kukonzekera ndikuyisunga, ndikuyambitsa nthawi zina. Kuyeretsa lambda ndi dimexide kumafuna kutentha osati kwambiri kufulumizitsa ndondomekoyi kuti mupewe crystallization!

Kawirikawiri theka la ola mpaka ola lowonekera ndilokwanira. Ndizopanda pake kusunga sensa mu chotsuka kwa nthawi yayitali, zomwe sizinasungunuke mu ola limodzi sizingatheke kuchoka tsiku limodzi.

Ngati mutatha kuyeretsa ndi chinthu chimodzi zotsatira zake sizinakukhutiritseni, ndiye kuti mutha kupiriranso sensa inanso, musaiwale kutsuka bwino kuti mupewe kuchitapo kanthu kosayenera kwa mankhwala.

Momwe mungayeretsere kafukufuku wa lambda pagalimoto

malingaliro ofunikira amomwe musayeretsere kafukufuku wa lambda ndi manja anu - osatsatira malangizo okhudzana ndi kuyanjana kwa ma acid ndi zinthu za sensor. Koma musachite izi:

• Kutentha kofulumira ndi kuziziritsa. Chifukwa cha kusintha kwa kutentha, gawo la ceramic la sensa (zirconium yomweyi kapena titaniyamu oxide) ikhoza kusweka. Ichi ndichifukwa chake Osawotcha sensa, ndiyeno nkuviika mu chotsukira chozizira. Ngati tifulumizitsa ndondomekoyi ndi kutentha, ndiye kuti asidi ayenera kutenthedwa, ndikubweretsa pamoto kuyenera kukhala kwakanthawi (nthawi ya masekondi), osati kutseka.
• Chotsani ma depositi a kaboni mwamakani. Othandizira abrasive amawononga malo ogwirira ntchito a sensa, kotero atatha kuyeretsa ndi emery kapena fayilo, akhoza kutayidwa.
• Yesani kuyeretsa pogogoda. Ngati mugogoda nawo mwamphamvu, mwayi wogwetsa mwaye ndi wochepa, koma chiopsezo chothyola zoumba ndi chachikulu kwambiri.

Kodi mungadziwe bwanji kuyeretsa kwa kafukufuku wa lambda?

Zotsatira zakuyeretsa kafukufuku wa lambda

Kuyeretsa kafukufuku wa lambda si njira yothetsera mavuto ake onse. Zomwe zimagwiritsidwa ntchito ndi mankhwala zimatha kuchotsa ma depositi ndi ma depositi, kutumphuka kwake komwe kumalepheretsa sensa kuti izindikire mpweya mumipweya yotulutsa mpweya.

Kaya kuyeretsa kafukufuku wa lambda kumathandiza zimadalira momwe kuipitsidwako kunaliri kosalekeza, komanso kusowa kwa mavuto ena ndi dongosolo la mafuta ndi dongosolo loyatsira.

Ngati DC ndi yotayirira, singafananize zowerengera ndi "reference" mpweya, gawo la ceramic lathyoka, losweka chifukwa cha kutenthedwa - palibe chomwe chidzasintha mukatsuka. Zotsatira zake sizidzakhalapo ngakhale ma depositi a carbon achotsedwa kokha ku chitetezo chachitsulo, popeza sensor yokha ili mkati.

Momwe mungayang'anire kafukufuku wa lambda mutatha kuyeretsa

kuti muyang'ane kafukufuku wa lambda mutatha kuyeretsa, ndibwino kuti mugwirizane ndi ECU kudzera pa OBD-2 ndikuchitanso zolakwika zonse. Pambuyo pake, muyenera kuyambitsa injini, mulole kuti iziyenda, kukwera galimotoyo ndikuwerengeranso zolakwikazo. Ngati ndondomekoyo yapambana, kuwala kwa Injini kudzazimitsa ndipo zolakwika za lambda sizidzawonekeranso.

Mutha kuyang'ana sensor popanda scanner ya OBD-2 yokhala ndi ma multimeter. Kuti muchite izi, pezani waya wolumikizira mu pinout yake ndikuchita izi.

1. Yambitsani injini yoyaka mkati ndikuyitenthetsa, kuti DC ifike kutentha kwa ntchito.
2. Yatsani multimeter mumayendedwe a DC voltage kuyeza.
3. Lumikizani ku waya wa siginecha ya lambda (malinga ndi pinout) osadula chip ndi "+" probe, ndi kafukufuku "-" pansi.
4. Onani zowerengera: pogwira ntchito, ziyenera kusinthasintha kuchokera pa 0,2 mpaka 0,9 volts, kusintha osachepera ka 8 mumasekondi 10.

Zithunzi za voteji ya sensa ya okosijeni mwachizolowezi komanso ngati kusweka

Ngati zowerengera zimayandama - sensa ikugwira ntchito, zonse zili bwino. Ngati sasintha, mwachitsanzo, amakhala pamlingo wa 0,4-0,5 volts nthawi zonse, sensor iyenera kusinthidwa. Kusasinthika kwa ma volts (pafupifupi 0,1-0,2 kapena 0,8-1 volts) kumatha kuwonetsa kuwonongeka kwa sensor ya okosijeni ndi zovuta zina zomwe zimapangitsa kuti pakhale kusakanikirana kolakwika.

Kodi pali phindu lililonse pakuyeretsa sensa ya oxygen?

Pomaliza, mutha kudziwa momwe kuyeretsera kumagwirira ntchito poyendetsa galimoto pang'ono. Ngati kugwira ntchito kwabwino kwa sensa ya okosijeni kubwezeretsedwa, kusagwira ntchito kumakhala kosavuta, kukankhira kwa ICE ndi kuyankha kwamphamvu kumabwerera mwakale, ndipo kugwiritsa ntchito mafuta kudzachepa.

Koma sizotheka nthawi zonse kumvetsetsa ngati kuyeretsa lambda kafukufuku kunathandiza: ndemanga zimasonyeza kuti popanda kubwezeretsa kompyuta, nthawi zina muyenera kuyenda tsiku limodzi kapena awiri zotsatira zisanachitike.