How to Fix a p0420 Catalyst System Efficiency Below Threshold Bank 1
4:55
YouTubeACE AUTOS UK
How to Fix a p0420 Catalyst System Efficiency Below Threshold Bank 1
Here is a tutorial on how to fix code p0420 catalyst system efficiency below threshold bank 1 how to diagnose and fix a Catalytic Converter and what to look out for http://youtu.be/Jwh4hJly4hQ first make sure no other DCT codes are present once all the other DTCs are fixed, clear the codes and start the engine up. Warm the engine up until the ...
167.6K viewsJun 15, 2014
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