porsche Workshop Repair Guides

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Oxygen Sensor In Front of Cat As Of MY 02|Page 2700 > < Oxygen Sensor In Front of Cat As Of MY 02|Page 2698
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Oxygen Sensor: Service and Repair
Oxygen Sensor Behind the Cat As Of MY 02

Removing And Installing Oxygen Sensor Behind The Catalytic Converter As Of MY 02

For tools, refer to Removing and installing oxygen sensors in front of the catalytic converter.

NOTE:  Observe precautionary measures when handling oxygen sensors!

Removing oxygen sensors behind the catalytic converter

Left side of oxygen sensor:

1. Remove the air filter housing.

2. Disconnect the plug connection in the left engine compartment -1- for the oxygen sensor behind the catalytic converter. To do this, pull out the

grey connector out of the holder first.
-

-1- grey connector for the sensor after the catalytic converter (black cable)

-

-2- black connector for the sensor before the catalytic converter (blue cable)

3. Undo the black cable -1- of the oxygen sensor behind the catalytic converter from two wire retainers and the sheetmetal brackets on the engine

strut.

NOTE:  Expose the oxygen sensor cable so that the cable can be unscrewed with the sensor when it is unscrewed

4. Open-end ring wrench for oxygen sensor No. Hazet 4681-1 should be placed from the engine compartment side at the hexagon of the oxygen

sensor behind the catalytic converter.

Oxygen Sensor In Front of Cat As Of MY 02|Page 2700 > < Oxygen Sensor In Front of Cat As Of MY 02|Page 2698