Passat V6-2.8L (ATQ) (2004)
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The respective fuses of Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130- and Oxygen Sensor (O2S) 2 Behind Three
Way Catalytic Converter (TWC) -G131- must be OK:
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Ignition switched off.
Test sequence
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Disconnect 4-pin harness connector to the respective oxygen sensor:
Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130- 4-pin harness connector (green, arrow).
Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) -G131- 4-pin harness connector (brown, arrow).
NOTE:
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Bank 1 = Cylinder bank 1, in direction of travel, right
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Bank 2 = Cylinder bank 2, in direction of travel, left
Vehicles with engine code AHA