Please check fitment notes & description for accurate information. 2002-2005 Hyundai Sonata 2.7L 2003-2008 Hyundai Tiburon 2.7L 2002-2006 Kia Optima 2.7L 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? .
