P0420 Is an evaporative emissions system leak code. This code is most often caused by a bad or loose fuel cap. It is also often caused by people refueling their vehicles with the engine running. It can also be caused by a leak in the system that has nothing to do with the fuel cap or refueling.
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)
What is the radio unlock code for a 1993 toyota corolla
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