porsche Workshop Repair Guides

Porsche Workshop Service and Repair Manuals

Removing and Installing Oxygen Sensors In Front of Catalytic Converter|Page 3139 > < Removing and Installing Oxygen Sensors In Front of Catalytic Converter|Page 3137
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2. Unscrew both oxygen sensors with a ring or open-ended wrench (a/f 22) -1-.

Installing oxygen sensors in front of catalytic converter

Installing oxygen sensors ahead of catalytic converter

ATTENTION:

Material damage can be caused by interchanged oxygen sensors.

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Change in emissions.

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Check Engine light comes on.
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The connector color of the oxygen sensor cable for the oxygen sensor behind the catalytic converter must match the color of the oxygen sensor
cable plug of the oxygen sensor ahead of the catalytic converter in the same exhaust assembly (brown to brown and black to black).

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Do not interchange oxygen sensors.

ATTENTION:

The oxygen sensor cable can be damaged if twisted.

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Change in emissions.

Removing and Installing Oxygen Sensors In Front of Catalytic Converter|Page 3139 > < Removing and Installing Oxygen Sensors In Front of Catalytic Converter|Page 3137