Lambda Oxygen O2 Sensor Rear For Porsche Boxster 986 2002 2003 2004 2.7L 3.2L

Porsche Boxster 986 2002-2004 2.7 Convertible. Porsche Boxster 986 2002-2004 S3.2 Convertible. The rear oxygen sensor is mainly to detect whether the three-way catalytic converter works normally. The front oxygen sensor is to detect the air-fuel ratio of the engine in different working conditions.

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