03 Nissan pathfinder p0420 How to Diagnose Codes P0420 & P0430 - … Oct 02, 2013 · How to Diagnose Codes P0420 & P0430 ThePeoplesGarage. Subscribe Subscribed Unsubscribe 8,655 8K. Loading How to Fix a P0420 or P0430 Code... Source Source Source Source Source Source Source Source Source Source Read Also: 2005 Nissan xterra p0420 p0430 Nissan p0420 p0430 2003 Nissan xterra p0430 Nissan maxima p0420 p0430 Nissan codes p0420 2003 Nissan xterra p0430 code