ʻO ka mea maʻamau, ʻo ka loiloi ʻenekinia o ka ʻōnaehana manaʻo wahie e hoʻoholo ai e pili kokoke ana ka sensor oxygen i ke keʻena kuni, a ʻoi aku ka kiʻekiʻe o ka pololei o ka hoʻokele wahie, ʻo ia ka mea i hoʻoholo nui ʻia e nā hiʻohiʻona o ka holo ʻana o ka ea, e like me ka wikiwiki o ke kinoea. ka lōʻihi o ke kahawai (ke kinoea ua lohi loa ma hope koke) a me ka manawa pane o ka sensor, a me nā mea ʻē aʻe. hoʻopau i ka hiki o ka hōʻailona hewa, a i nā manawa he nui e hōʻemi i ka manawa hōʻoia ma ka hoʻopau ʻana i ka hapa liʻiliʻi o nā cylinders pilikia. Hiki i ka mea hoʻololi catalytic maʻamau me ka mea ʻike oxygen ʻelua a me kahi ʻōnaehana hoʻokele manaʻo wahie e hoʻomalu maʻamau i ka ʻōnaehana hoʻohele wahie hiki ke hōʻoia i ka hoʻololi palekana o nā mea hoʻopau pōʻino i loko o ka carbon oxide a me ka mahu wai. Eia naʻe, e pōʻino ka catalytic converter ma muli o ka overheating (no ka maikaʻi ʻole o ka ʻāʻī ʻana, a me nā mea ʻē aʻe), e alakaʻi i ka emi ʻana o ka ʻili o ka catalyst a me ka sintering o ka orifice metala, nā mea ʻelua e hōʻino mau loa i ka catalytic converter.

Ke hāʻule ka catalyst, hiki iā mākou ke ʻike he mea koʻikoʻi nā ʻenehana i ka hoʻoponopono ʻana i ke kaiapuni a me ka ʻōnaehana exhaust.

ʻO ka hiʻohiʻona o ka ʻōnaehana hōʻoia OBD-II e hana i ka ʻōnaehana nānā ʻana ma luna o ka papa a me ka ʻōnaehana nānā OBD-II o ke kaiapuni a me ka catalyst ʻike pono e like me nā hiʻohiʻona oxidation o nā catalysts maikaʻi a maikaʻi ʻole. Ma ka hana paʻa, ʻoi aku ka liʻiliʻi o ka fluctuation hōʻailona o kahi mea ʻike oxygen maikaʻi (wela) ma hope o ka catalyst ma mua o kēlā me kēia mea ʻike oxygen i mua o ka catalyst, no ka mea, hoʻopau ka catalyst hana maʻamau i ka hiki ke hoʻololi i ka hydrocarbons a me carbon monoxide. hōʻemi i ka loli o ka hōʻailona o ka sensor post-oxygen.