Thread: 2002 Pontiac Montana Error code P0420
View Single Post
  #2  
Old 06-24-2012, 09:33 PM
gmtech1's Avatar
gmtech1 gmtech1 is offline
AF Enthusiast
  
Join Date: Aug 2011
Posts: 2,001
Thanks: 4
Thanked 303 Times in 301 Posts
Re: 2002 Pontiac Montana Error code P0420
The catalyst code is pretty straight foreward, you need a cat. You can try clearing it and hope it does not reset, other than that, you need to replace the converter.
Reply With Quote