Oxygen O2 Sensor Up+Downstream For Nissan Altima 3.5L 2008-209 Maxima 3.5L 2009. Altima 3.5L V6 2008 2009. Oxygen Sensor. Maxima 3.5L V6 2009. If the sensor is good, further diagnosis is required. There're many different codes for specific functional failures, which are NOT necessarily relevant to the sensor.
