Catalyst efficiency below threshold (bank1) You may have a tired catalytic converter on bank 1.
Trouble code P0420 means:Catalyst system efficiency below threshold
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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
what does trouble code p0420 means on 2000 daewoo laganza
Trouble code P0420 means:Catalyst system efficiency below threshold
warning code check faults indicated by subsequent codes
Trouble code P0301 means: Cylinder 1 Misfire Detected
Trouble code P0171 means:System too lean (Bank 1)