I have this '00 Lexus ES300, code P0420, looking at bank 1, it looks like the cat is seperate from the manifold, but the front cat (bank 2) is part of the manifold, I also see only one cat monitor sensor, do I need to replace the rear manifold to replace bank ...

FIX posted 12/28/2009

iATN Members:
Login to view full TechHelp request
Auto Repair Pros:
Join iATN to read this TechHelp request
Vehicle Owners:
Find a nearby iATN member to repair your vehicle