2004-2006 Lexus RX330 (V6, 3.3L) (Base). Q: How do I know the O2 sensor is good or not?. 2004-2005 Toyota Highlander (V6, 3.3L) (Base; Limited). 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.