Where can I find a diagram for a 2011 Tundra 4.6L engine ?

What is your question?

I have a code of P0418 And I am trying to replace the smog pump myself but I can not locate it . Can anyone help me to find an engine diagram so I can try this myself. I really want to try to fix this myself the truck has 193500 miles on it. This was a really good truck so can anyone help me to change this out?

What makes this problem better or worse?

The check engine light stays on

How long has your 2011 Toyota Tundra had this problem?

a couple of weeks