为什么换down stream sensor 呀?
所有跟帖:
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O2 sensor and Catalyst Monitor ,EGR System Incomplete
-别在窗前等我-
♂
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09/28/2019 postreply
21:37:31
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你之前换up stream sensor时断电池或clear code了吧。之后需要足够的drive cycles 才完成ecm
-hellotom-
♂
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09/29/2019 postreply
06:35:53