请教专家：01 Toyota Sienna 140K miles Code 0420

两年前也是同样的code 花了350 换了O2 sensor，不知道这次是不是别的什么坏了？

所有跟帖： 

• Same code then same sensor. -Yangtze430030- ♂ (0 bytes) () 09/20/2012 postreply 09:22:46

• 回复：请教专家：01 Toyota Sienna 140K miles Code 0420 -Yangtze430030- ♂ (83 bytes) () 09/20/2012 postreply 09:23:42

• Cat 歇菜了 -biglow- ♂ (92 bytes) () 09/20/2012 postreply 10:54:26

• 回复：Cat 歇菜了 -benniao- ♂ (57 bytes) () 09/20/2012 postreply 13:44:00

• 要是没有inpsection什么的就再开呗 -biglow- ♂ (0 bytes) () 09/20/2012 postreply 13:57:20

• Cat lasts long time. I had P0138 and P0606 last Dec on a 2006 C -顺序是否有要求- ♂ (166 bytes) () 09/20/2012 postreply 19:52:40

• 如果车的油耗正常,那14万迈,CAT是可能玩儿完了 -满地找牙- ♂ (82 bytes) () 09/21/2012 postreply 08:33:23

• 回复：01 Toyota Sienna 140K miles Code 0420 -Happy-DIY- ♂ (229 bytes) () 09/22/2012 postreply 07:20:34