4个plugs都查了？如果其他3个大体一样而#2独特，发黑但不OILiy，应是燃烧不充分，若黑且Oily，OilLeak

来源: mountrobson 于 2022-11-04 08:21:18 [旧帖] [给我悄悄话] 本文已被阅读：次

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