Hellow guys, Welcome to my website, and you are watching Check Engine Light Code P0420 on Your Car / Truck? Replace These Parts to Pass Emissions. and this vIdeo is uploaded by 1A Auto: Repair Tips & Secrets Only Mechanics Know at 2024-05-25T13:01:03-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.