P0420 Error Code Explained - Catalyst System Efficiency Below Threshold

The FIXD wireless OBD2 scanner and free app for iPhone and Android translates your check engine light into plain English so you can rest easy. In this video, we explain what OBD2 code P0420 means and possible causes. P0420 means that the catalytic converter is not functioning efficiently in Bank 1, therefore increasing the output of harmful pollutants by the vehicle. The function of the catalytic converter is to break down harmful pollutants that are created by your vehicle during the combustion cycle and convert them into less harmful gases. Want to learn more? Check out our blog ➡️ https://www.fixdapp.com/blog/p0420-code/ Get FIXD 67% OFF (only $19.99) ➡️ https://fixd.me/youtubesale Upgrade to FIXD Premium and save 50% ➡️ https://fixd.me/premium 0:00 P0420 - Catalyst System Efficiency Below Threshold 0:10 P0420 is caused by the Catalytic Converter not functioning efficiently in Bank 1 0:28 What is the Catalytic Converter? 1:11 Top 3 causes of P0420 1:26 Visit our blog to learn more about P0420 1:32 Happy Driving! #FIXD #P0420 #checkenginelight