[nonda Auto DIY Center] P0420 is the most common engine error code, it stands for catalyst system efficiency below threshold. Check out this self-repair video tutorial created by nonda's expert mechanics. Fix it yourself and save $$$ on your repair fees. Don't forget to claim your FREE ZUS Smart Vehicle Health Monitor here https://bit.ly/FreeZUS-ADC and get an in-depth diagnosis of your vehicle condition. | nonda

Got a P0420 code? A failing catalytic converter is something that you won't typically feel, but you will get a check engine light for it! If this has happened to you, Andy is here to answer the common questions about catalytic converters, and what you can do to replace yours. This is one where some time spent diagnosing the problem will point you to exactly what parts you need! Check out 1AAuto.com for anything you need for your car or truck! | 1A Auto Parts