ʻO Opel Astra ka mea ʻike oxygen

Ma ka ʻōnaehana uila uila (ECM), ʻo ka lambda probe ke kuleana no ka nānā ʻana i ka neʻe ʻana o ka oxygen i nā kinoea hoʻopau. Hoʻohana ʻia ka ʻikepili sensor i loaʻa e ka ECU no ka hoʻoponopono ʻana i ka hāʻawi ʻana i ka huila wahie i nā keʻena puhi ahi o nā cylinders.

ʻO nā hōʻailona hoʻonui a lean paha e ʻae iā ʻoe e hoʻonohonoho i nā ʻāpana maikaʻi loa o ka wahie a me ka oxygen no ka hoʻopau piha ʻana a me ka hana pono o ka ʻāpana. Ma ka Opel Astra exhaust system, aia ka oxygen sensor ma luna o ka catalytic converter.

ʻO ka mea hana a me ke kumumanaʻo o ka hana o ka probe lambda

ʻO ka lambda probe o ka Opel Astra hou o ka hanauna hou loa no ke ʻano broadband me kahi cell galvanic e pili ana i ka zirconium dioxide. ʻO ka hoʻolālā o ka lambda probe he:

• Nā kino.
• Hoʻopili ka electrode waho mua me nā kinoea hoʻopau.
• Hoʻopili ka electrode i loko me ka lewa.
• ʻAno paʻa galvanic cell (zirconium dioxide) aia ma waena o ʻelua electrodes i loko o ka pahu.
• Hoʻomoʻa i ke kaula e hana i kahi mahana hana (ma kahi o 320 ° C).
• Spike i ka pahu no ka lawe ʻana i nā kinoea hoʻopau.

Hoʻokumu ʻia ka pōʻaiapuni hana o ka ʻimi lambda ma ka ʻokoʻa kūpono ma waena o nā electrodes, i uhi ʻia me kahi ʻāpana oxygen-sensitive kūikawā (platinum). Hoʻomaʻamaʻa ka electrolyte i ka wā o ka hui ʻana o ka ea o ka lewa me nā ion oxygen a me nā kinoea hoʻopau, ʻo ia ka hopena e ʻike ʻia nā voltages me nā ʻokoʻa like ʻole ma nā electrodes. ʻO ke kiʻekiʻe o ka oxygen, ʻo ka haʻahaʻa haʻahaʻa. Hoʻokomo ka amplitude uila i ka ECU ma o ka mana mana, kahi e koho ai ka papahana i ke kiʻekiʻe o ka saturation o ka ʻōnaehana exhaust me ka oxygen e pili ana i nā koina voli.

ʻO ka diagnostics a me ka hoʻololi ʻana i ka mea ʻike oxygen

ʻO ka nele o ka "oxygen" alakaʻi i nā pilikia me ka mīkini:

• Hoʻonui i ka manaʻo o nā hoʻokuʻu ʻino i nā kinoea hoʻopau
• Hāʻule nā ​​RPM i ka hana ʻole
• Aia ka piʻi ʻana o ka wahie
• Hoʻemi ka holo kaʻa

ʻO ke ola lawelawe o ka lambda probe ma kahi Opel Astra he 60-80 tausani km. He paʻakikī loa ka ʻike ʻana i kahi pilikia me kahi sensor oxygen - ʻaʻole e hāʻule koke ka hāmeʻa, akā me ka lohi, e hāʻawi ana i nā waiwai hewa ʻole o ka ECU a me nā hemahema. ʻO nā kumu o ka ʻaʻahu mua ʻana paha he wahie haʻahaʻa haʻahaʻa, hana ʻenekini me nā mea ʻeleʻele o ka hui cylinder-piston, a i ʻole ka hoʻoponopono ʻana i ka valve kūpono ʻole.

Hoʻopaʻa ʻia ka hemahema o ka oxygen sensor i loko o ka log memory ODB, hana ʻia nā code hewa, a ʻā ke kukui "Check Engine" ma ka papa mea kani. Wehewehe i nā helu kuhi hewa:

• P0133 - He kiʻekiʻe a haʻahaʻa paha ka heluhelu ʻana o ka uila.
• P1133 - Pane lohi a i ʻole hāʻule ʻike.

Hiki ke hana hewa ʻia ka sensor ma muli o nā kaʻa pōkole, nā uwea nahā, ka hoʻoheheʻe ʻana o nā mea hoʻopili hope, ka hāʻule ʻole o ka ea (leakage ea i nā laina intake) a me nā injectors hewa.

Hiki iā ʻoe ke nānā kūʻokoʻa i ka hana o ka sensor me ka hoʻohana ʻana i kahi oscilloscope a me kahi voltmeter. No ka nānā ʻana, e ana i ka uila ma waena o ka uea pulse (+) - ma ka Opel Astra h uea ʻeleʻele a me ka lepo - uea keʻokeʻo. Inā ʻokoʻa ka amplitude hōʻailona i kēlā me kēia kekona ma ka pale oscilloscope mai 0,1 a 0,9 V, a laila e hana ana ka lambda probe.

Pono e hoʻomanaʻo ʻia e nānā ʻia ka sensor oxygen me ka hoʻomehana ʻana o ka ʻenekini i ka mahana hana ma ka hana ʻole.

Ke kaʻina hana hou

No ka hoʻololiʻana i ka meaʻike oxygen me ka Opel Astra h, pono kahi kī'ē aʻe ma mua o 22. Ma mua o ka hanaʻana, pono e wehe i ka pahu "negative" o ka pakuhi aʻae i nā mea o ka'ōnaehana exhaust e hoʻomaha.

• E kaomi i ka pipili o ka poloka kaula uwea i na hope o ka probe lambda.

• E hoʻokaʻawale i nā kaula uwea mai ka ʻenekini.

• Wehe i ka catalytic converter pale pale wela ma ka manifold.

• Wehe i ka nut e hoʻopaʻa ana i ka probe lambda me ke kī i "22".

• Wehe i ka mea ʻike oxygen mai ka mauna manifold.

• Hoʻokomo ʻia kahi ʻimi lambda hou ma ka ʻaoʻao hope.

I ka wā e hoʻololi ai, pono e hana ʻia nā hana āpau ma kahi ʻenekini hoʻoluʻu ma kahi mahana ʻaʻole kiʻekiʻe ma mua o 40-50 ° C. Hoʻopili ʻia nā pilina pili o ka sensor hou me kahi sealant thermal kūikawā e hiki ke kū i nā wela kiʻekiʻe e pale ai i ka "pili" a pale i ka komo ʻana o ka wai. Hoʻololi pū ʻia nā O-rings me nā mea hou (i hoʻokomo pinepine ʻia i loko o ka pahu hou).

Pono e nānā ʻia ka uwea no ka pōʻino insulation, nā haki a me ka oxidation ma nā hopena pili, kahi, inā pono, e hoʻomaʻemaʻe ʻia me ka sandpaper maikaʻi. Ma hope o ka hoʻokomo ʻana, ʻike ʻia ka hana o ka lambda probe i nā ʻano hana ʻenehana like ʻole: 5-10 mau minuke i ka haʻahaʻa haʻahaʻa, a laila hoʻonui i ka wikiwiki i ka lōʻihi o 1-2 mau minuke.