Come back codes PO422 8 mounts have replace bought two O2 sensors.
Need help to pass inspections.
Do not want to change expensive catalytic converter.
have the same problem?
Tuesday, October 23rd, 2018 AT 6:36 PM
Hello, I am Danny.
Sorry to inform you but the code you provided is showing the catalytic converter for Bank 1 is deficient. Replacing the O2 sensors will not fix the problem. I have attached a tutorial showing what is involved. Hope this helps and feel free to ask any questions. Thanks for using 2CarPros.