Where is the fuel filter on a 99 tl and when do they need to be changed?

 

It's in the fuel tank. It does not need to be replaced (unless there is a problem with it).

 

part #1 (top right of picture)

 

I would like to know as well. i was told at one time that our cars dont have an "actual" fuel filter but the entire charcoal canister served that purpose, but ive also heard that it is integrated into the fuel pump so i would definatley like to know