S8 Quattro Sedan V10-5.2L (BSM) (2009)
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Disconnect the black Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) (G130) electrical harness connector- 2 -.
Checking internal resistance
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Using a multimeter, check the Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) (G130) terminals 1 to 2 for resistance.