回复：去年年底斑竹的建议用spark plug pressure gauge测压力变化，试否？

来源: 于 2011-01-11 14:43:33 [旧帖] [给我悄悄话] 本文已被阅读：次

It is a cylinder pressure test.  You can find video on your tube that shows how to do it corretly.