Trouble code P0420 means: Catalyst System Efficiency Below Threshold (Bank 1) Replace O2 Sensor?
P0420, bank one catalytic converter efficiency failure.
Trouble code P0420 means: Catalyst system efficiency below threshold (bank 1)
trouble code P0420 means: Catalyst Efficiency Low - A Bank
Trouble code P0420 means: Catalyst Efficiency Below Normal (Bank 1)
Trouble code P0420 means: Catalyst Efficiency Below Normal (Bank 1)
P0420 is bank one catalytic converter efficiency failure.
For 1996 and newer Trouble code P0420 means:Catalyst system efficiency below threshold (bank 1)
Trouble code P0420 means: Catalyst System Efficiency Below Threshold (Bank 1)
P0420 Catalyst System Efficiency Below Threshold (Bank 1)
P0420 is not a part. its a cat efficiency bank 1 code
Trouble code P0420 means: Catalyst Efficiency Below Threshold (Bank 1)