He aha nā kinoea i ʻike ʻia e OBD i loko o ka hoʻopau?
Ke holo nei kāu ʻenekini ma ka ʻā-ahi—e hana ana i nā kinoea hoʻopau. Hoʻopuka ʻia ka nui o nā kinoea i ka wā o ka hana maʻamau a pono e mālama ʻia e like me ka nui o nā mea haumia ke hoʻokuʻu ʻia i ka lewa. He kuhi hewa maoli nō ka ʻike ʻana o ka ʻōnaehana diagnostic on-board (OBD) o kāu kaʻa i nā kinoea, akā ʻaʻole ia ka hihia. ʻIke i nā hewa o nā mea hoʻopau (catalytic converter, oxygen sensor, pahu pahu pahu pahu pahu, etc.).
Nā mea ʻike oxygen
ʻO kahi hapa o ka huikau ma ʻaneʻi e pili ana i ka catalytic converter a me ka mea ʻike oxygen o ke kaʻa. Hiki i kāu kaʻa ke loaʻa hoʻokahi a ʻelua mau mea hoʻololi catalytic a hoʻokahi a ʻoi aku paha nā mea ʻike oxygen (he nui nā mea ʻike oxygen i kekahi ma nā wahi like ʻole o ka ʻōnaehana exhaust).
Aia ka catalytic converter ma kahi kokoke i ka waena o ka paipu pauka ma ka hapa nui o nā kaʻa (ʻoiai he ʻokoʻa paha kēia). ʻO kāna hana ʻo ia ka wela a me ka puhi ʻana i nā kinoea hoʻopau i loko o nā kaʻa āpau. Eia naʻe, ʻaʻole ana ka ʻōnaehana OBD i kēia mau kinoea, koe wale ka oxygen.
Oxygen sensors (ai ole O2 sensors) ke kuleana no ke ana i ka nui o ka oxygen unburned i loko o ka exhaust o kou kaʻa a laila hoʻouna i kēlā ʻike i ke kamepiula o ke kaʻa. Ma muli o ka ʻike mai nā mea ʻike O2, hiki i ke kamepiula ke hoʻololi i ka hui ʻana o ka ea-wahie i ʻole e holo lean a waiwai paha (ʻoi aku ka nui o ka oxygen a i ʻole ka nui o ka oxygen, kēlā me kēia).
ʻO nā mea ʻē aʻe i hoʻomalu ʻia e ka ʻōnaehana OBD
Mālama ka ʻōnaehana OBD i nā ʻāpana like ʻole e pili ana i ka ʻōnaehana wahie/evaporation, ʻōnaehana hoʻoiho, a me nā ʻōnaehana ʻē aʻe, me:
- EGR valve
- Kelehua
- mea hoʻoheheʻe catalytic
- Pūnaehana hoʻoheheʻe crankcase
- ʻO kekahi mau mea o ka ʻōnaehana AC
Eia naʻe, ʻaʻole nānā ka ʻōnaehana OBD i nā kinoea - nānā ia i ka volta a me ke kūpaʻa, hiki ke hōʻike i kahi pilikia me kēia mau ʻāpana (a no laila ka hoʻokuʻu holoʻokoʻa o ke kaʻa ponoʻī).
