2003 Camry: Engine light on. Code P0420

Recommend to replace catalytic converter------reflash ECM.

The catalytic conveter costs $1300. 

What should I do? Replace it, or sell the car? 

Thanks.

 

所有跟帖： 

• 先查一查Catalytic Converter的温度；跑了多少麦？ -soccer88- ♂ (211 bytes) () 08/22/2017 postreply 12:44:25

• > 140,000. Thanks. -oldoak- ♂ (0 bytes) () 08/22/2017 postreply 12:54:43

• 他说坏的输出温度高于输入温度，没说错吗？ -chinomango- ♂ (248 bytes) () 08/22/2017 postreply 21:46:55

• 为啥要Reflash ECM? -biglow- ♂ (269 bytes) () 08/22/2017 postreply 12:45:09

• "Recommend to replace catalytic converter------reflash ECM." fro -oldoak- ♂ (286 bytes) () 08/22/2017 postreply 12:56:09

• 应该是忽悠，只需要Clean code -soccer88- ♂ (0 bytes) () 08/22/2017 postreply 13:15:51

• 不是忽悠，定时是有参考旧数据的。 -chinomango- ♂ (0 bytes) () 08/22/2017 postreply 21:49:15

• 理论上是，老车实际上开一阵子就更新了 -soccer88- ♂ (0 bytes) () 08/22/2017 postreply 22:00:15

• “开一阵子就更新了 ”没错 -chinomango- ♂ (0 bytes) () 08/23/2017 postreply 21:43:09

• How much should I pour the lacquer thinner in the gas tank? Than -oldoak- ♂ (86 bytes) () 08/22/2017 postreply 13:03:24

• 半箱油，一加仑 -biglow- ♂ (79 bytes) () 08/22/2017 postreply 14:30:51

• If I do not fix it, what would happen? -oldoak- ♂ (125 bytes) () 08/22/2017 postreply 13:11:12

• Try a cheap fix first . Search p0420 fouler -calmleo- ♀ (0 bytes) () 08/22/2017 postreply 15:45:03

• You can leave it and drive. No big deal. But can not pass annual -calmleo- ♀ (0 bytes) () 08/22/2017 postreply 15:46:38

• if state does not ask for inspection, continue to drive. -Tianyazi- ♂ (51 bytes) () 08/22/2017 postreply 18:50:53

• 我的车有过，卖了几罐 lacquer remover 在油箱快没油的时候加入，高速开20-30分钟，就没了。旧车让人长知识， -北美翠花- ♀ (289 bytes) () 08/22/2017 postreply 18:59:57

• Agree w the fouler approach. Just install one to the offense se -leslieking- ♂ (0 bytes) () 08/22/2017 postreply 19:09:29

• 换掉air filter, 可能太脏了，产生同样的code -Tianyazi- ♂ (100 bytes) () 08/22/2017 postreply 21:21:02

• Cat converter -2ndGear- ♂ (208 bytes) () 08/23/2017 postreply 06:56:12

• Thanks everyone! I will try the lacquer thinner 1st and let u kn -oldoak- ♂ (0 bytes) () 08/23/2017 postreply 08:01:21