Just installed invidia tp, throwing code P0420 Catalyst System Efficiency Below Threshold Bank 1. I want to make sure that's the code from the o2 sensor in the tp. If it is, anybody have a link for a good o2 fouler? Thanks for the help.

 

Here's a DIY for o2 CEL codes:

https://www.s2ki.com/s2000/topic/546...to-fix-o2-cel/

Pretty sure this is the standard fix for the test pipe . Good luck!

 

^ thanks, my bad though, I posted and then searched and found absolutely everything I could possibly want to know about that code, should have searched first......