發黑, 沒油, 覺得根本沒燃燒
回答: 4個plugs都查了?如果其他3個大體一樣而#2獨特,發黑但不OILiy,應是燃燒不充分,若黑且Oily,OilLeak
由 mountrobson
於 2022-11-04 08:21:18
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