Just thought I would bring this to the top. Got a P0 420 code today. 1st time in a long time. Anybody ever fix the P0 420 code?
I have found out that the P0420 and P0430 codes typically have to do with a catalytic converter gasket leak. I had the P0430 code and made the mistake of taking it to the dealer. Of course, I was told to replace them both for $2,600 plus tax. The dealer charged close to $100 plus tax as a diagnosis fee.
I went to Midas and God bless the good folk out there who determined the code to be a gasket leak. The gasket was replaced for under $100 plus tax.
Catalytic Converters For 96 Ls400
in 90 - 00 Lexus LS400
Posted
I have found out that the P0420 and P0430 codes typically have to do with a catalytic converter gasket leak. I had the P0430 code and made the mistake of taking it to the dealer. Of course, I was told to replace them both for $2,600 plus tax. The dealer charged close to $100 plus tax as a diagnosis fee.
I went to Midas and God bless the good folk out there who determined the code to be a gasket leak. The gasket was replaced for under $100 plus tax.
I hope this helps anyone who gets these codes.