Removing Oxygen Sensor Downstream Of Catalytic Converter

NOTIFICATION 

Incorrect handling of oxygen sensors 

• Damage to oxygen sensors 
• Different exhaust emission behaviour 
  • → Do not remove the plastic cap on the thread until just prior to fitting.
  • → Protect oxygen sensors from impact of any kind.
  • → Do not kink or twist the cables when screwing in the sensors.
  • → Do not re-use dirty or damaged components.

Information 

• Pre-treat corroded components with anti-rust agent or heat. 

1. Vehicles with particle filter: 

   Unscrew nuts -1  - from differential pressure sensor lines -2  -.

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

2. Vehicles with particle filter: 

   Disconnect differential pressure sensor lines -1  - from particle filter -2  -.

   1. 2.1 Unscrew screw -3  -.
   2. 2.2 Unscrew union nuts -4  - from differential pressure sensor lines -1  -.
   3. 2.3 Disconnect differential pressure sensor lines -1  - from particle filter -2  - and move them aside.

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

3. Remove oxygen sensor -1  - downstream of catalytic converter -2  -.
   1. 3.1 Remove tie-wrap -3  - from coolant pipe -4  -.
   2. 3.2 Remove electric plug connection -5  - from bracket -6  -.
   3. 3.3 Release and disconnect electric plug connection -5  -.
   4. 3.4 Unscrew and remove oxygen sensor -1  -.

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.