The NGK direct-fit oxygen sensor for Volkswagen Passat (1991–1993) supplies continuous closed-loop feedback to the ECU to help manage air–fuel ratio, maintain engine performance and reduce emissions while aiding fuel economy. NTK's ceramic element incorporates a 3-stage contaminant-resistant plasma jet and deposit-trap overcoat to guard against element poisoning. NTK refines sensor designs with OEM partners to improve longevity and reliability.
NGK Volkswagen Passat 1993-1991 Direct Fit Oxygen Sensor