O2 sensor data with P0420, bad cats?

[B.E. Coyote]

Oh, that's coming apart. Bad bad bad

Do you think the third cat is toast because of it?

I am contemplating drilling a hole in the pipe to put my borescope in but I'm not sure how the 3 flange walker cats are going to mate up to the no flange stock cat. I guess it will be okay if I drill it far up enough towards the front of the vehicle.

If the third cat needs replaced I'd like to order it tonight so it is here when I get back.

Started a new thread about how to mate the two, I may have the wrong part.

 

[B.E. Coyote]

So, I'm going to go ahead and say the final cat is at least compromised and possibly restricting my exhaust.

Drilled a hole in the pipe and sent the scope down. Sorry for the shaky vid.

View: %5BURL%5Dhttps://youtu.be/pKi19-oXzSs[/URL]