Search for: Home › Forums › Topic Tag: Code P0420 Viewing topic 1 (of 1 total) Topic Voices Replies Last Post 08 Toyota Prius P0420 code and maybe bad cat converter? Started by: Robert nasiff in: Service and Repair Questions Answered Here 1 0 4 years, 2 months ago Robert nasiff Viewing topic 1 (of 1 total)