P0447 nissan xterra 2004 Nissan Armada P0447 fixed!!! - YouTube May 09, 2015 · This model has a DTC code P0447. It has a defective vent valve and an open connection in the signal wire. 2004 Nissan Armada P0447... Source Source Source Source Source Source Source Source Source Source Read Also: P0447 nissan P0447 code nissan P0447 evaporative emission control system vent control circuit open nissan P0447 nissan titan P0447 nissan sentra Canister vent control valve nissan xterra