The NGK direct-fit oxygen sensor for Chevrolet Optra (2004–2005) supplies the engine control unit with closed-loop feedback to help regulate air–fuel ratio, improve fuel efficiency and reduce emissions. NTK-developed ceramic element technology includes a 3-stage contaminant-resistant plasma jet and deposit-trap overcoat to protect the sensor from poisoning; designs are refined with OEM manufacturers to enhance resistance to failure in OE-replacement applications.
NGK Chevrolet Optra 2005-2004 Direct Fit Oxygen Sensor