DTC P0420 Or DTC P0430: Notes
WARNING: This page is about a different car, the 2003 Mazda Tribute. However, it is still accessible from the selected car via links, so may be relevant.
Code Definition
- DTC P0420: Catalyst Efficiency Monitor (Bank 1) - Malfunction
- DTC P0430: Catalyst Efficiency Monitor (Bank 2) - Malfunction