GTI L4-2.0L Turbo (BPY) (2007)
Oxygen Sensor: Testing and Inspection
Oxygen Sensor (O2S) 1 (Behind Three Way Catalytic Converter (TWC)) Heater Z29, Checking
Oxygen Sensor (O2S) 1 (behind Three Way Catalytic Converter (TWC)) Heater Z29, Checking
NOTE:
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Vehicle must be raised before electrical harness connector for the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) G130 is
accessible.
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When servicing terminals in harness connector of Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) G130, use only
gold-plated terminals.
Special tools, testers and auxiliary items required
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Multimeter.
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Wiring diagram.
Test requirements
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The Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) G130 fuse OK.
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Battery voltage at least 12.5 volts.
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All electrical consumers such as, lights and rear window defroster, switched off.
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Vehicles with automatic transmission, shift selector lever into position "P" or "N".
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A/C switched off.
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Ground (GND) connections between engine/transmission/chassis OK.
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Ignition switched off.
Test sequence
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Remove the right vehicle floor cover - arrows
Checking internal resistance