Guys, I forgot to mention that I did get the code P0420. I will get a second opinion from a shop with a scan tool to determine O2 sensors vs Cats.
Thanks
My 2000 Sport Edition 4Runner got the engine light. Toyota diagnosed it as bad cat converters and wants $2700 to install new ones (I live in CA). My objective is to use aftermarket, but there is a speed bump:
I've read on other forums that the 2000 model registered for smog approval late in...
