Installing 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 .

Information
- When reinstalling oxygen sensors, grease the thread with the Optimol Paste MF lubricant (Part No. 000.043.207.07) only.
- New oxygen sensors have already been greased and the thread is fitted with a protection cap.
Install lambda sensors.
1. 2.1. During reinstallation, the thread of the lambda sensors must be coated with the prescribed grease.
2. 2.2. Install lambda sensor on side 4-6.
  Screw in lambda sensor -6- downstream of catalytic converter -8- . Then tighten it with the Open Ring Wrench Nr.98 and torque wrench Nr.92 Pos.1.
  
  → Tightening torque: 55 Nm (41 ft. lb.) +/-5 Nm (+/-3.5 ft. lb.)
  
  Fig 1: Tightening Lambda Sensor Downstream Of Catalytic Converter On Side 4-6
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Install lambda sensor on side 1-3.
1. 3.1. During reinstallation, the thread of the lambda sensors must be coated with the prescribed grease.
2. 3.2. Screw in lambda sensor -5- downstream of catalytic converter -9- . Then tighten it with the open ring wrench Nr.98 and torque wrench Nr.92 Pos.1.
  → Tightening torque: 55 Nm (41 ft. lb.) +/-5 Nm (+/-3.5 ft. lb.)
  
  Fig 2: Tightening Lambda Sensor Downstream Of Catalytic Converter On Side 1-3
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Route lambda sensor lines.
1. 4.1. Route lambda sensor line on side 4-6.
  Clip lambda sensor line -2- with the black boot into the brackets -3, 4- .
  
  Fig 3: Tightening Lambda Sensor Line Downstream Of Catalytic Converter On Side 4-6
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
2. 4.2. Route lambda sensor line on side 1-3.
  Clip lambda sensor line -2- with the black boot into the brackets -3, 4- .
  
  Fig 4: Identifying Lambda Sensor Downstream Of Catalytic Converter On Side 1-3
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Connect lambda sensor lines.
Connect plug connections -1, 5- for lambda sensors with the black boot and insert into the bracket -3, 4- .

Fig 5: Disconnecting/Connecting Lambda Sensor Line
Courtesy of PORSCHE CARS NORTH AMERICA, INC.