Please check fitment notes & description for accurate information. 2003-2006 Infiniti FX35 3.5L 2003-2008 Infiniti FX45 4.5L 2003-2007 Infiniti G35 3.5L 2006 Infiniti M35 3.5L 2006-2010 Infiniti M45 4.5L 2003-2006 Nissan 350Z 3.5L Oxygen Sensor's Location: How do I know the O2 sensor is good or not? Check engine light on A reduction in fuel economy. Your catalytic converter fails unexpectedly Exhaust emissions reach undesirable levels. How to install the oxygen sensor? .
