July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!
Emission Control System (3MZ-FE): Location
WARNING: This page is about a different car, the 2004 Lexus ES 330. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Emission Control System (3MZ-FE) Component (1 Of 2)