Lacquer Thinner Fix (P0420 Engine Code) Catalytic Converter Faulty

Song used: Tonez&Re-C - Kyoto So here I got the P0420 code, and that means that the Catalytic Converter wasn't functioning at maximum efficiency. Looking online and many forums, including Scotty Kilmer, the lacquer thinner fix seemed the way to go if I wanted to spend $20 instead of $1,000. Watch the video to see if it worked!!