2006 Nissan quest engine code p0420 Source Source Source Source Source Source Source Source Source Source Read Also: 2000 Nissan quest p0420 2006 Nissan frontier p0420 code 2006 Nissan altima code p0420 Engine code p0420 nissan altima P0420 nissan altima 2006 2005 Nissan altima engine code p0420