Automotive-leader 234-9038 Air Fuel Ratio Upstream AFR Oxygen O2 Sensor for QX56, for Equator, for Armada Titan Rogue Altima Frontier Maxima Xterra Pathfinder 211200-7070 22693-1AA0A : Automotive - Amazon.com
P0031 Code: O2 Sensor Heater Issue (Symptoms and How to Fix)