I finally jacked my car up last night and crawled up under it. Sure enough, that diagram I had was all wrong for my year and model. Well, sort of. That image/diagram shows ALL YEARS/MAKES on one sheet. That why it's so confusing. My 01 only has the 4 sensors on the cats located in the headers just as you guys told me. Thanks again. Guess I just had to see it for myself to understand.
