911 Carrera 4 Cabriolet (996) F6-3.4L (1999)
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Catalytic Converter: Service and Repair
Removing and Installing Catalytic Converters - Engine Installed
Tools
Tools
CAUTION!
Oxygen sensor can be damaged if handled improperly.
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Do not remove the plastic cap on the thread until just prior to fitting the oxygen sensor. The thread grease must under no circumstances come into
contact with the plug.
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Protect sensors - before and after fitting - against mechanical shocks.
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Sensors that were dropped on the floor must not be used owing to the risk of a broken ceramic insulator.
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The cables must not be twisted or kinked when the sensors are screwed in. Avoid pulling on the cable and plug.
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Cleanliness in the housing of the plug connections is of utmost importance for the function of the oxygen sensor.
Particles of dirt can impair the function of the oxygen sensor. Therefore, the plug must be protected against any and all types of soiling.
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Sensors with soiled or damaged plug must no longer be used.
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Protect the cables and plugs when transporting the exhaust system with the sensors already fitted.
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High-pressure cleaning equipment must not be used in the area of the sensors and plug connections.
Removing and installing catalytic converters
Removal
1. Remove air cleaner assembly:
