Removing oxygen sensors behind catalytic converter - USA

Oxygen sensor cylinder bank 1-3: 

1. Remove right rear wheel. To do this, use the socket wrench insert P 300 to avoid damaging the wheel.
   • -1- Sensor behind catalytic converter: black cable conduit
   • -2- Sensor in front of catalytic converter: blue cable conduit
2. Pull off oxygen sensor cable plug behind catalytic converter (black cable conduit) and expose oxygen sensor cable.
   Fig 1: Pulling Off Oxygen Sensor Cable Plug Behind Catalytic Converter (Black Cable Conduit) (USA)

   Courtesy of PORSCHE OF NORTH AMERICA, INC.
3. Undo oxygen sensor -2-with an open-ended wrench or open ring wrench (a/f 22) and screw it out by hand.
   Fig 2: Undoing Oxygen Sensor (USA)

   Courtesy of PORSCHE OF NORTH AMERICA, INC.

   Oxygen sensor cylinder bank 4 - 6: 

   • -1- Sensor behind catalytic converter: black cable conduit
   • -2- Sensor in front of catalytic converter: blue cable conduit
4. Pull off oxygen sensor cable plug behind catalytic converter (black cable conduit) and expose oxygen sensor cable.
5. Undo oxygen sensor using an open-ended wrench (a/f 22) and screw it out by hand.