audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Knock Sensor 1, Checking|Page 3104 > < Knock Sensor 1, Checking|Page 3102
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Knock Sensor: Service and Repair

Knock Sensors

Electrical Connectors

1

To fuel injectors, cylinder bank 1

2

Throttle valve control module (J338)

3

Knock Sensor (KS) 1 (G61)

4

Oxygen sensor (G39)

5

Oxygen Sensor (O2S) behind Three Way Catalytic Converter (TWC) (G130)

Electrical Connectors

1

Knock Sensor (KS) 2 (G66)

2

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

Removing

CAUTION!
‹› Fuel system is under high pressure! Before opening high pressure components of the fuel injection system, pressure must be relieved

to residual pressure => [ Before Opening High Pressure Fuel Injection System ] See: Fuel Delivery and Air Induction/Fuel Filter/Fuel
Pressure Release/Service and Repair.

‹›  Then wrap a clean cloth around the connection and relieve residual pressure by carefully loosening the connection.

‹› Observe safety precautions when disconnecting the battery.

Knock Sensor 1, Checking|Page 3104 > < Knock Sensor 1, Checking|Page 3102