Trouble code P0420 means:Catalyst system efficiency below threshold
Trouble code P0420 means:Catalyst system efficiency below threshold
Trouble code P0420 means:Catalyst system efficiency below threshold
Trouble code P0420 means:Catalyst system efficiency below threshold
Trouble code P0420 means:Catalyst system efficiency below threshold
Trouble code P0420 means:Catalyst system efficiency below threshold
Trouble code P0420 means: Catalyst System Efficiency Below Threshold (Bank 1)
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Trouble code P0420 means: Catalyst Efficiency Below Normal (Bank 1)
Code P0420-Catalyst Efficiency Below Threshhold You will need to replace the catalytic converter and O2 sensors.
Trouble code P0441 means: Evaporative Emission System Incorrect Purge Flow
Trouble code P0446 means: Evaporative Emission System Vent Control Circuit