air fuel ratio

来源: hotpepper 于 2019-09-23 18:00:58 [] [旧帖] [给我悄悄话] 阅读数 : (325 bytes)
回答: 这个检查起来比较麻烦吧？ 由 原上草2017 于 2019-09-23 16:49:42

Your error code indicates the air fuel ratio is wrong. Only three factors affect A/F ratio, MAF sensor, upstream O2 sensor such as B1S1, and potential air leakage after MAF. Therefore I said first check MAF and O2 sensor. If O2 sensor stable at 0.75 v and not change quickly with time, that indicates a bad sensor.

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