I have a 2012 Odyssey with about 150k, and I’m getting a fault pointing to the catalytic converter. I’ve heard of people putting laquer thinner in the gas tank and getting good results. Does anyone have any ideas on this, can it help or hurt the car? I would appreciate your imput.

 

If your cat is bad it's bad and no treatment will fix it.
The only thing that gets well with these treatments is the sellers pocketbook.