NGK direct-fit oxygen sensor for 2002–2004 Kia Spectra. Oxygen sensors supply continuous closed-loop feedback to the engine control unit, helping maintain engine performance, increase fuel efficiency and reduce emissions by controlling the air–fuel ratio and notifying OBDII systems of fuel delivery or catalytic converter issues. This unit incorporates an advanced ceramic element with a 3-stage contaminant-resistant plasma-jet and deposit-trap overcoat to improve resistance to poisoning.
NGK Kia Spectra 2004-2002 Direct Fit Oxygen Sensor