Please check fitment notes & description for accurate information. 2000-2001 Mazda MPV 2.5L Downstream 1996-1998 2002-2006 Mazda MPV 3.0L Downstream 2004-2011 Mazda RX-8 1.3L Downstream 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? .
