Momwe mungayang'anire valavu yotsuka ndi multimeter

Valve yoyeretsa ndi chipangizo chomwe chili ndi makhalidwe ake.

Mosiyana ndi zida zina mu injini yanu, zimatengera nthawi yochulukirapo kuti zimango ziziwonetsa pakabuka mavuto.

Chodabwitsa, ichi ndi chimodzi mwazinthu zosavuta kuyesa mayeso.

Pali njira zingapo zomwe zingagwiritsidwe ntchito, komabe anthu ambiri sadziwa choti achite.

Nkhaniyi ikufotokoza zonse zomwe muyenera kudziwa zokhudza valve yoyeretsa, kuphatikizapo momwe imagwirira ntchito komanso njira zosiyanasiyana zodziwira ndi multimeter.

Tiyeni tiyambe.

Kodi valve purge ndi chiyani?

Valavu yoyeretsa ndi gawo lofunikira pamakina amakono a Evaporative Emissions Control (EVAP) omwe amathandizira kukonza bwino mafuta komanso kuchepetsa kutulutsa mpweya. 

Pa kuyaka, valavu yotsuka ya EVAP imalepheretsa nthunzi kuthawira mumlengalenga powasunga mkati mwa chimbudzi cha malasha.

Pamene powertrain control module (PCM) imatumiza chizindikiro ku valavu yotsuka, nthunzi zamafutazi zimathamangitsidwa mu injini kuti ziwotche, zomwe zimakhala ngati gwero lachiwiri lamafuta. 

Pochita zimenezi, PCM imatsimikizira kuti valve yoyeretsa imatsegula ndi kutseka nthawi yoyenera kuti itulutse mpweya wabwino wa mafuta mu injini. 

Kuchotsa mavuto a valve

Valve yoyeretsa ikhoza kukhala ndi zolakwika zingapo.

1. Vavu yoyeretsa yatsekedwa

Vavu yoyeretsa ikakakamira pamalo otsekedwa, kusokoneza ndi kuvutikira kuyambitsa injini kumachitika.

Komabe, PCM imazindikira vutoli mosavuta ndipo magetsi a injini amabwera pa dashboard ya galimotoyo.

2. Valovu yoyeretsa yatsekedwa

Vavu yotsuka ikakhazikika pamalo otseguka, ndizosatheka kuwongolera kuchuluka kwa nthunzi yamafuta yomwe ikuponyedwa mu injini.

Zimayambitsanso kuwonongeka kwa injini ndikuyamba zovuta, ndipo zimakhala zovuta kuzizindikira chifukwa galimotoyo ikupitiriza kuyenda.

3. Vuto lamagetsi

Pakhoza kukhala mavuto ndi ma terminals omwe amalumikiza ndi PCM.

Izi zikutanthauza kuti pakagwa vuto, valve yoyeretsa sichilandira chidziwitso cholondola kuchokera ku PCM kuti igwire ntchito zake.

Multimeter imathandizira kuyesa koyenera pa izi komanso kuyesa pazinthu zina zamagalimoto.

Momwe Mungayesere Purge Valve ndi Multimeter (Njira zitatu)

Kuti muyese valavu yoyeretsa, ikani dial ya multimeter kukhala ohms, ikani njira zoyesera pazitsulo zamagetsi za purge valve, ndikuyang'ana kukana pakati pa ma terminals. Kuwerenga pansi pa 14 ohms kapena pamwamba pa 30 ohms kumatanthauza kuti valve yoyeretsa ndiyolakwika ndipo iyenera kusinthidwa..

Sizo zonse, komanso njira zina zowonera ngati valve yoyeretsa ili bwino kapena ayi, ndipo tidzapita kwa iwo tsopano.

Njira 1: Kuwunika Kupitiliza

Mavavu ambiri oyeretsa ndi solenoid, ndipo kuyesa kopitilira kumathandiza kuonetsetsa kuti chitsulo kapena coil yamkuwa ikuyenda kuchokera ku zabwino kupita ku terminal yoyipa ndi yabwino.

Ngati koyilo iyi ndi yolakwika, valavu yoyeretsa sigwira ntchito. Kuti muyese izi, tsatirani izi.

1. Lumikizani valavu yoyeretsa mgalimoto

Kuti mukhale ndi mwayi wopeza valve yoyeretsa ndikuyang'ana kupitiriza, muyenera kuichotsa pagalimoto.

Musanachite izi, onetsetsani kuti galimotoyo yazimitsidwa kwa mphindi zosachepera 30.

Lumikizani valavu ya purge pomasula zingwe zapaipi zolowera ndi zotuluka, komanso kuzidula pamalo opangira magetsi.

Paipi yolowera imachokera ku tanki yamafuta ndipo payipi yotuluka imapita ku injini.

2. Khazikitsani ma multimeter kukhala mosalekeza

Khazikitsani kuyimba kwa multimeter kuti ikhale yopitilira, yomwe nthawi zambiri imayimiridwa ndi chizindikiro cha "sound wave".

Kuti muwone ngati mawonekedwewa akhazikitsidwa bwino, ikani ma probes awiri a multimeter pamwamba pa wina ndi mzake ndipo mudzamva beep.

3. Ikani ma probe a multimeter pamaterminals

Multimeter yanu ikakhazikitsidwa molondola, mumangoyika zofufuza pamagetsi a purge valve.

4. Voterani zotsatira

Tsopano, ngati multimeter sikulira pamene mubweretsa zofufuza ku malo opangira mphamvu, ndiye kuti coil mkati mwa valve yoyeretsa imawonongeka ndipo valve yonse iyenera kusinthidwa. 

Ngati ma multimeter akulira, pitilirani ku mayeso ena.

Njira 2: Kuyesa Kukana

Valve yoyeretsa ikhoza kusagwira ntchito bwino chifukwa kukana pakati pa zabwino ndi zoipa ndizochepa kwambiri kapena zokwera kwambiri.

Multimeter ikuthandizaninso kuzindikira potsatira izi.

1. Lumikizani valavu yoyeretsa mgalimoto

Monga ngati kuyesa kopitilira, mumadula valavu yoyeretsa mgalimoto.

Mumamasula zingwe ndikulekanitsanso valavu pagawo lamagetsi. 

2. Khazikitsani ma multimeter anu kukhala ohms

Kuti muyese kukana kwa valve yanu yoyeretsa, mumayika ma multimeter dial kukhala ohms.

Izi nthawi zambiri zimawonetsedwa ndi chizindikiro cha omega (Ω) pa multimeter. 

Kuti mutsimikizire kuti yakhazikitsidwa molondola, multimeter iyenera kuwonetsa "OL" kutanthauza kutseguka kapena "1" kutanthauza kuwerenga kosatha.

3. Udindo wa multimeter probes

Ingoyikani ma multimeter otsogolera pamagetsi a purge valve. 

4. Voterani zotsatira

Izi ndi zomwe mumatchera khutu. Valavu yabwino yoyeretsa ikuyembekezeka kukhala ndi kukana kwa 14 ohms mpaka 30 ohms, kutengera chitsanzo. 

Ngati multimeter ikuwonetsa mtengo womwe uli pamwamba kapena pansi pamlingo woyenera, ndiye kuti valavu yanu ya purge ndi yolakwika ndipo iyenera kusinthidwa.

Ngati mtengo ukugwera mkati mwamtunduwu, pitilizani masitepe ena.

Makina ochulukirachulukira siwofunika pamasitepe enawa, koma ndiwothandiza pakuzindikira zovuta zomwe zili zotseguka kapena zotsekeka.

Njira 3: kuyesa makina

Mayesero a makina amakina amaphatikizapo kuyesa kwa purge valve ndi kuyesa vacuum vacuum. 

Purge Valve Click Test

Kuyang'ana kudina kwa valve yoyeretsa kumathandiza kuzindikira vuto lomwe latsekedwa.

Kawirikawiri, injini ikathamanga, chizindikiro chimatumizidwa ku valve yoyeretsa pazitsulo zapakati kuti zitsegule ndi kulola kuti mpweya wamafuta ulowe.

Pamakhala phokoso lakugunda nthawi iliyonse valve ikutsegula ndipo izi ndi zomwe mukufuna kufufuza.

Kuti muyese mayeso osavuta, tsatirani izi.

Valavu yoyeretsa ikachotsedwa pagalimoto yanu, ilumikizani ndi mphamvu mwa kungoyilumikiza ku batri yagalimoto. Ndiko kukhazikitsidwa kophweka ndipo zonse zomwe mungafune ndi ma tapi a alligator, batire la 12 volt ndi makutu anu.

Ikani zigawo ziwiri za ng'ombe pamagetsi aliwonse a valve yanu yotsuka ndikuyika mbali ina ya ma tapi onse pa batire iliyonse. Izi zikutanthauza kuti chojambula chimodzi cha alligator chimapita kumalo abwino a batri ndipo china kupita ku choyipa.

Valavu yabwino yoyeretsa imapanga phokoso lakugogoda pamene zingwe zalumikizidwa bwino. Monga tanenera kale, phokoso lodumpha limachokera ku kutsegula kwa valve yoyeretsa.

Njirayi ndi yophweka, ndipo ngati ikuwoneka yosokoneza, kanema kakang'ono kameneka kamasonyeza momwe mungayesere kuyesa kwa valve purge valve.

Purge Valve Vacuum Test

Kuyesa kwa vacuum vacuum kumathandizira kuzindikira vuto lotseguka.

Ngati valavu yoyeretsa ikutha, singachite ntchito yake yopereka mpweya wokwanira wamafuta ku injini.

Chida china chowonjezera chomwe mungafunikire ndi pampu yopukutira pamanja.

Gawo loyamba ndikulumikiza pampu ya vacuum ku doko lomwe mpweya wamafuta umatuluka mu injini.

Mufunika payipi ya pampu ya vacuum kuti ikhale pakati pa mainchesi 5 ndi 8 kuti ikwane bwino. 

Paipiyo ikalumikizidwa bwino, yatsani pampu ya vacuum ndikuwonetsetsa kuti kuthamanga kuli pakati pa 20 ndi 30 Hg. 30 ndi. Art. imayimira vacuum yabwino ndipo ndiye mphamvu yokwanira yotsekera (yozungulira kuchokera pa 29.92 Hg).

Dikirani kwa mphindi 2-3 ndikuwunika mosamalitsa kuthamanga kwa vacuum pa mpope.

Ngati kuthamanga kwa vacuum kutsika, valavu ya purge ikutha ndipo iyenera kusinthidwa. Ngati sichoncho, ndiye kuti palibe kutayikira mu valve yoyeretsa.

Ngati kupanikizika sikuchepa, mukhoza kutenga sitepe imodzi - kulumikiza valve yoyeretsa ku gwero lamphamvu, monga batri ya galimoto, kuti itsegule.

Mukangomva kudina komwe kukuwonetsa kutsegula kwa valavu, mumayembekezera kuti vacuum itsika mpaka ziro.

Izi zikachitika, valavu yotsuka ndi yabwino.

Kodi muyenera kusintha valavu yoyeretsa?

Kuwona valavu yoyeretsa ndikosavuta. Mutha kugwiritsa ntchito ma multimeter kuyesa kupitiliza kapena kukana pakati pa ma terminals, kapena kuyesa makina pakudina mawu kapena vacuum yoyenera.

Ngati chimodzi mwa izi chikulephera, ndiye kuti unit iyenera kusinthidwa.

Ndalama zosinthira zimachokera ku $ 100 mpaka $ 180, zomwe zimaphatikizaponso ndalama zogwirira ntchito. Komabe, mutha kusinthanso valavu yoyeretsa nokha ngati mukudziwa kuyenda bwino.

EVAP purge vavu m'malo pa 2010 - 2016 Chevrolet Cruze ndi 1.4L

Mafunso ofunsidwa kawirikawiri

Kodi ndingadziwe bwanji ngati valavu yanga yoyeretsa yatsekedwa?

Ngati valavu yotsuka yatsekedwa, injiniyo imakhala yosasunthika, ikusokonekera, yoyipa, kapena yovuta kuyimitsa galimoto. Izi ndichifukwa choti kuchuluka kwa nthunzi yamafuta kumaperekedwa ku injini.

Kodi chimachitika ndi chiyani ngati valavu yoyeretsa ikanimira pamalo otsekedwa?

Vavu yotsuka ikatsekeka, injini imakhala yopanda ntchito, injini imakhala ndi vuto loyambira, kapena kuwala kwa injini kumayaka. Izi ndizofulumira kuzindikira kusiyana ndi pamene valavu yotsuka imakanizidwa pamalo otseguka.

Kodi kukana kwa valve purge ndi chiyani?

Kukana kwa valve yabwino yoyeretsa kuli pakati pa 14 ohms ndi 30 ohms. Izi zimasiyanasiyana ndi chitsanzo ndipo mtengo uliwonse pansipa kapena pamwamba pa mndandandawu umasonyeza kulephera kwa valve purge.

Kodi valavu yoyeretsa iyenera kudulidwa?

Inde, valavu yoyeretsa yomwe ikugwira ntchito imadina ikalumikizidwa ndi gwero lamagetsi. Izi zikutanthauza kuti imatsegula kuti itulutse nthunzi yamafuta kuchokera mumtsuko wamakala ndikuwapereka ku injini.

Kodi valavu yoyeretsa ikhoza kutsukidwa?

Mutha kuyeretsa valavu yotsuka popanda kuitsegula popopera mankhwala otsukira carburetor kapena MAF mumadoko olowera ndi kutulutsa. Tsekani mbali zonse ziwiri, gwedezani bwino valavu ndikusiya zinyalala zituluke.