The P0420 trouble code indicates that your car’s computer system detects that Bank 1 catalytic converter efficiency is lower than the specified threshold. A catalytic converter is a device that reduces the amount of harmful pollutants in a car's exhaust system before they leave the vehicle.
In this video, we mainly discuss what the P0420 code means, what causes it, and how to fix it.

Check Out More Videos:
P0455 Code Causes And Fixes: [ Ссылка ]
P0442 Code Causes and Fixes: [ Ссылка ]
P0400 Engine Code Causes and Fixes: [ Ссылка ]
Reasons Why Car Heater Blowing Cold Air: [ Ссылка ]

Chapters:
00:00 Introduction
00:50 Faulty Catalytic Converter
01:10 Faulty Oxygen Sensors
01:37 Exhaust Leaks
01:55 Engine Misfire
02:16 Faulty Engine Control Unit
02:38 Contaminated Fuel
02:54 Damaged Spark Plugs
03:13 DIY Fixes

Related Searches
Bad Oxygen Sensor Symptoms
Bad Catalytic Converter
Symptoms of a bad Catalytic Converter
Catalyst System Efficiency
Bad Catalyst System
P0420 Trouble Code
How to fix P0420 Code
How to fix bad Catalytic Converter
P0420 code Bank 1
P0420 Suzuki
P0420 VW

Disclaimer:
This video is for educational purposes only. We are not in the auto repair business nor publish automotive service manuals. This video is not reviewed or authorized by any vehicle manufacturer. This video is intended only as general guidance. Every system is slightly different, so refer to the owner’s manual of your vehicle for any specific information about your model. Remember that only proper service and repair procedures will ensure your car's safe and reliable operation.

Copyright Disclaimer:
Copyright Disclaimer Under section 107 of the Copyright Act 1976, allowance is made for “fair use” for purposes such as criticism, comment, news reporting, teaching, scholarship, education, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational, or personal use tips the balance in favor of fair use.

Visit our website To Download PDF: [ Ссылка ]
Contact Us At Our Email If You Have Any Questions: hello.mechanicalboost@gmail.com

свернуть