S4 V8-4.2L (BHF) (2004)
Oxygen Sensor: Locations
Component Locations, Overview
3
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Connector console
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Pin assignment
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See Fig. 10
11
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Connector console
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Pin assignment
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See Fig. 11
Fig. 10 Assignment of holder for connectors (right side)
1
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6-pin connector for Heated Oxygen Sensor (HO2S) -G39- and Oxygen Sensor (O2S) Heater -Z19- before catalytic converter, bank 1
4
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4-pin connector for Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130- and Oxygen Sensor (O2S) Heater 1 (behind
Three Way Catalytic Converter (TWC)) -Z29-, bank 1
Fig. 11 Connector console beneath coolant expansion tank