Removing Lambda Sensor Downstream Of Catalytic Converter

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Observe precautionary measures when working with lambda sensors.
→ 2400AW PRECAUTIONARY MEASURES WHEN HANDLING LAMBDA SENSORS .
Disconnect lambda sensor lines.
1. 2.1. Pull connector -1, 5- for the lambda sensor wire with the black boot out of the bracket -3, 4- and disconnect plug connections.
  
  Fig 1: Identifying Left/Right Lambda Sensor Connector
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Information
- Always expose oxygen sensor wire far enough for it to be able to turn when unscrewing the sensor.
Expose lambda sensor lines.
1. 3.1. Expose lambda sensor line on side 4-6.
  Unclip right lambda sensor line -2- (with the black boot) out of the brackets -3, 4- .
  
  Fig 2: Identifying Lambda Sensor Line Downstream Of Catalytic Converter On Side 4-6
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
2. 3.2. Expose lambda sensor line on side 1-3.
  Unclip left lambda sensor line -2- (with the black boot) out of the brackets -3, 4- .
  
  Fig 3: Identifying Lambda Sensor Line Downstream Of Catalytic Converter On Side 1-3
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Remove lambda sensors downstream of catalytic converter.
1. 4.1. Remove lambda sensor downstream of catalytic converter on side 4-6.
  Loosen and unscrew right lambda sensor -6- downstream of catalytic converter -8- using an open ring wrench Nr.96-3 and torque wrench Nr.92 Pos.1.
  
  Fig 4: Loosening Lambda Sensor Downstream Of Catalytic Converter On Side 4-6
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
2. 4.2. Remove lambda sensor downstream of catalytic converter on side 1-3.
  Loosen and unscrew left lambda sensor -5- downstream of catalytic converter -9- using an open ring wrench Nr.98 and torque wrench Nr.92 Pos.1.
  
  Fig 5: Loosening Lambda Sensor Downstream Of Catalytic Converter On Side 1-3
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.