如果盖子类同这个，中间里面有弹簧（不清楚2000的车有没有）。换盖子是最方便的一试，无果的话，换EGR parts...

The code P0401 is listed among other possible codes. The repair again involves cleaning the EGR ports. Toyota Camry/Corolla: In Toyota Camry with the 2.2L engine, the code P0401 was often caused by a bad VSV (Vacuum Switching Valve) for the EGR, located under the intake at the back of the engine.

所有跟帖： 

• 一定得有弾簧才能密封 -MoonRiverMe- ♂ (0 bytes) () 10/11/2019 postreply 06:01:05

• 谢谢你！不管有没有弹簧，我准备去买个新盖子 -anmom- ♀ (0 bytes) () 10/11/2019 postreply 07:01:43

• 谢谢你耐心解释和图片！我的盖子结垢比较简单，好像没弹簧，我仔细查查 -anmom- ♀ (0 bytes) () 10/11/2019 postreply 07:00:24

• 不可能没有，你看不见而已 -MoonRiverMe- ♂ (0 bytes) () 10/11/2019 postreply 07:27:13