Oxygen Sensors Overview

WARNING: This page is about a different variant/trim than selected.

Fig 1: Identifying Electrical Connectors

Courtesy of AUDI OF AMERICA, LLC

1 -

Fuel injectors, cylinder bank 1

2 -

Knock sensor (KS) 1 -G61-

4 -

Heated oxygen sensor -G39-

5 -

Oxygen sensor after three way catalytic converter -G130-

Fig 2: Oxygen Sensor Electrical Connectors on Cylinder Bank 2 (left)

Courtesy of AUDI OF AMERICA, LLC

1 -

Oxygen sensor 2 after catalytic converter -G131-

2 -

Heated oxygen sensor (HO2S) 2 -G108-

3 -

Fuel injectors, cylinder bank 2 and from the fuel pressure sensor -G247-

4 -

Knock sensor (KS) 2 -G66-

Fig 3: Oxygen Sensors Location, Cylinder Bank 1 (right)

Courtesy of AUDI OF AMERICA, LLC

1 -

Heated oxygen sensor -G39-

2 -

Oxygen sensor after three way catalytic converter -G130-

Oxygen sensor after three way catalytic converter -G130-, removing and installing, refer to Oxygen Sensor after Three Way Catalytic Converter -G130- BANK 1 RIGHT

Fig 4: Oxygen Sensors Location, Cylinder Bank 2 (left)

Courtesy of AUDI OF AMERICA, LLC

1 -

Heated oxygen sensor (HO2S) 2 -G108-

2 -

Oxygen sensor 2 after catalytic converter -G131-

Heated oxygen sensor (HO2S) 2 -G108-, removing and installing, refer to Heated Oxygen Sensor 2 -G108- IN FRONT OF BANK 2 LEFT CATALYTIC CONVERTER .

Oxygen sensor 2 after catalytic converter -G131-, removing and installing, refer to Oxygen Sensor 2 after Catalytic Converter -G131- BANK 2 LEFT .