Maitiro ekuyedza iyo air fuel ratio sensor ine multimeter

Mota yemhepo-fuel ratio sensor, inowanzozivikanwa seO2 sensor kana lambda probe, inoyera huwandu hweokisijeni mumagasi ekuburitsa uye inotumira kuECU. Iyi data inoshandiswa kugadzirisa injini yemhepo-mafuta reshiyo mukamuri yekupisa. Basa rayo guru nderokuderedza huwandu hwegasi rine ngozi rinobudiswa mumhepo nekuona huwandu hweokisijeni husina kupiswa hunobuda muhurongwa.

Iyo oxygen sensor inogona kuita ngura uye inoda kutariswa kuti ive nechokwadi chekushanda chaiko. Ichi chinyorwa chichakubatsira iwe kudzidza maitiro ekuyedza iyo air fuel ratio sensor ine multimeter.

Chii chinoita sensor yemafuta emhepo?

Iyo O2 sensor ndeye compact, yakapusa mudziyo ine sensor kumagumo yakaiswa mupombi yekupedza. Nekuda kweizvozvo, iyo sensor yakagadzirirwa kutarisa chiyero cheokisijeni mumagasi ekupedza. Chiyero cheokisijeni chinoyerwa ne sensor chinobva chaendeswa munguva chaiyo kuECU, iyo inogadzirisa inodiwa mafuta / oxygen ratio. (1)

Iyo yemhepo mafuta reshiyo sensor inoiswa pamberi peiyo catalytic inoshandura mune exhaust manifold kana kumberi kwepombi yekupedza. Iyo inozivikanwawo se "mberi O2 sensor". Iyo mhepo yemafuta ratio sensor inofanirwa kuona huwandu hweokisijeni mumagasi ekupedza uye kutumira iyo data kune injini komputa (PCM). Kombiyuta inoshandura chiyero chemhepo-mafuta zvichienderana nemhepo-fuel ratio sensor data kuti irambe iri padanho rakanyanya, kutenderedza 14.7: 1, kana 14.7 zvikamu zvemhepo kusvika 1 chikamu chemafuta.

Maitiro ekuyedza iyo air fuel ratio sensor ine multimeter

Paunenge uchiedza kuyedza sensor yeokisijeni, kazhinji ipfungwa yakanaka kuziva rudzi rweokisijeni sensor mota yako. Anonyanya kufarirwa ane waya imwe kusvika kushanu anozvibatanidza nemota yese, uye ipfungwa yakanaka kuona mhando usati watanga kuiedza.

Method 1: chiratidzo waya bvunzo

1 Step: Iva nechokwadi chokuti injini yemotokari inotonhorera zvakakwana.

2 Step: Isa iyo dijitari multimeter kune voltmeter modhi.

3 Step: Reversely probe the signal voltage uye oxygen sensor ground wire.

4 Step: Batanidza iyo DMM nhema inotungamira kune reverse sensor pasi chiratidzo tambo.

5 Step: Batanidza iyo dzvuku lead yeDMM kune iyo chiratidzo voltage lead.

6 Step: Batidza injini yemotokari.

7 Step: Kana ma sensor emota yako ari kushanda nemazvo, voltmeter inofanira kuverenga pakati pe0.1 ne0.9 volts.

Kana usiri kuwana kuverenga sezviri pamusoro, unofanirwa kuita kuti sensor yeokisijeni yemotokari yako itariswe uye igadziriswe kana kutsiviwa namakanika. Iyo chaiyo yemhepo-mafuta reshiyo yeinjini mukamuri yekupisa yakakosha zvikuru. (2)

Nzira 2: Kupisa waya bvunzo

1 Step: Tarisa kana injini yakadzimwa.

2 Step: Isa iyo DMM kune ohmmeter modhi.

3 Step: Nhanho inotevera ndeyekudzosera kumashure-kuferefeta waya dzinopisa uye dzepasi dzeiyo oxygen sensor heater.

4 Step: Batanidza tambo yakatsvuka ye multimeter kune tambo inopisa yemoto uye tambo yakasviba kune pasi tambo yemoto ine multimeter.

5 Step: Nhanho inotevera ndeyekuona kana iwe uine ma sensors akakodzera, izvo zvichave pachena kana iyo multimeter kuverenga kuri pakati pegumi ne10 ohms.

Nzira yekuziva sei kana chiyero chemhepo-mafuta chakashata

Ngatitaurei nezve nzira yekuziva iyo yakakanganisika okisijeni sensor; ngatiendei pamusoro pezviratidzo zviri pachena zve o2 kukundikana. Kunyangwe kusvika kuO2 kwakaoma nekuda kwenzvimbo yayo, pane zvimwe zviratidzo zvinokuzivisa iwe kana paine dambudziko. Zviratidzo zviri pachena ndezvi:

• Iyo pombi yekupedza inoburitsa kunhuhwirira kusingafadzi.
• Kuderedza kushandiswa kwepeturu.
• Cheki injini chiedza chinouya otomatiki.
• Injini idling yakaoma.
• Paunotanga motokari, mutangi unova wakaoma.

Kuvapo kwechiedza chejini chekuongorora pamwe chete nezvimwe zviratidzo zvakanyorwa pamusoro apa zvinogona kuratidza kusashanda kwemafuta okisijeni sensor. Kuti uongorore dambudziko, tarisa iyo diagnostic dambudziko kodhi iri mujini control unit. Funga kumhanyisa mimwe bvunzo kana iyo yakaonekwa dambudziko kodhi inoratidza kuti o2 haina kukwana.

Summing up

Mushure mekuita bvunzo dzakasiyana, iwe unozogona kuona kana dambudziko riri ne sensor kana chimwe chikamu. Kana O2 iine dambudziko, unogona kuzvigadzirisa iwe pachako nekukasira. Kana usina chokwadi, endesa motokari yako kune nyanzvi inokwanisa. Rangarira kuti kutsvaga nekugadzirisa dambudziko nekukurumidza kunodzivirira mamwe matambudziko akakomba kubva pakukura. Ndinovimba ndapindura mibvunzo yako nezve kutarisa iyo air fuel ratio sensor ine multimeter.

Tarisa zvimwe zvezvinyorwa zvedu pazasi.

• Maitiro ekuyedza majekiseni emafuta ane multimeter
• Maitiro ekuyedza matatu-waya crankshaft sensor ine multimeter
• Maitiro ekutarisa chiratidzo cheiyo coaxial tambo ine multimeter

kurumbidza

(1) O2 - https://www.sciencedirect.com/topics/engineering/oxygen-o2

(2) makanika - https://www.indeed.com/career-advice/finding-a-job/mechanic-types