大众途安速腾斯柯达后氧传感器 06A906262CQ 0258006771 排气监控

Volkswagen Touran, Sag, and Skoda rear oxygen sensor (OEM 0258006771) installed behind the exhaust manifold to monitor post-catalyst exhaust oxygen and feed back to ECU to adjust air–fuel ratio for emissions and fuel economy. Compatible with OEM numbers 06B906262A, 0258006744 and 0258006745; fits various 1.6L–2.0L engines. Installation difficulty: medium; labor about 0.5–1 hour; ensure threads are not damaged during removal. If the check engine light or fuel consumption abnormal, inspect promptly.