修车工给我的note: 2xPO171, lean condition

来源: 于 2014-10-21 16:14:47 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

he also said too much air for too little fuel.
有什么建议吗？是不是空气从其邮箱里钻进了fuel system?