1-can i remove this? I took it off before and my car ran light shiet, but i'm pretty sure that was due to other problems.
2-Can i remove my carbon canister by removing/plugging these lines (3).
- i'm cleanin' up my engine bay and removed a lot o' crap, but i don't know if these actually do something, or are just more useless nissan garbage.

 

I moved your post it was a more suitable question to ask outside the sticky.
But yes you can remove those devices. If you have a FED ecu meanig a non california ecu you shouldn't throw any codes disconecting the canister or the AIV.

 

I don't have any of that stuff and my car runs fine without it. They don't check emissions here anyway.

 

^^^ yea i live in Florida, so no emissions

 

I too removed that stuff. My car runs fine.