Removing and Installing Oxygen Sensors Behind Catalytic Converter

Removing And Installing Oxygen Sensors Behind Catalytic Converter

Tools







Preliminary work

Preliminary work: Removing oxygen sensors behind catalytic converter

ATTENTION:
Danger of burns from hot exhaust system.
- Only remove the exhaust system once it has cooled down.
- Wear protective gloves.

1. Loosen and bend primary catalytic converter (primary catalytic converter does not need to be removed completely).












Tools and materials

Tools - oxygen sensor







Removing oxygen sensors in front of catalytic converter -Cayenne Turbo (M48/50)







ATTENTION:
The oxygen sensor cable can be damaged if twisted.
- Change in emissions.
- Check Engine light comes on.
- Always expose oxygen sensor cable so that the wire can turn when unscrewing or screwing in the sensor.
- Do not kink cable.

1. Carefully unscrew oxygen sensors on primary catalytic converter.

Installing oxygen sensors behind catalytic converter -Cayenne Turbo (M48/50)
1. Position the oxygen sensor by hand and screw in as far as possible.
2. Tighten oxygen sensor using special tool. Tightening torque: 33 ftlb. ±3.5 ftlb.


Removing oxygen sensors behind catalytic converter - Cayenne S (M48/00)







ATTENTION:
The oxygen sensor cable can be damaged if twisted.
- Change in emissions.
- Check Engine light comes on.
- Always expose oxygen sensor cable so that the wire can turn when unscrewing or screwing in the sensor.
- Do not kink cable.

1. Carefully unscrew oxygen sensors on primary catalytic converter.

Installing oxygen sensors behind catalytic converter -Cayenne S (M48/00)
1. Position the oxygen sensor by hand and screw in as far as possible.
2. Tighten oxygen sensor using special tool. Tightening torque: 33 ftlb. ±3.5 ftlb.

Subsequent work

Subsequent work: Installing oxygen sensor behind catalytic converter
1. Install primary catalytic converter.