P0420 chevy cruze: catalyst system efficiency below threshold Cruze code and vehicle messages Chevy p0420 code cruze p0442 express pilot p0430 honda trouble tacoma system causes efficiency catalyst threshold below cause many things
CRUZE CODE and VEHICLE MESSAGES | CHEVROLET - YouTube
CRUZE CODE and VEHICLE MESSAGES | CHEVROLET - YouTube
P0420 Chevy Cruze: Catalyst System Efficiency Below Threshold