A4 Sedan L4-1.8L Turbo (AWM) (2001)
Engine Speed Sensor: Connector Locations
Installation Location, Harness Connectors
The Following Harness Connectors Are Located Below The Coolant Expansion Tank:
1
-
4-pin Harness Connector, Brown For Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130- And Oxygen Sensor (O2S)
Heater 1 -Z29- (bank 1 Sensor 2)
2
-
6-pin Harness Connector, Black For Heated Oxygen Sensor (HO2S) -G39- Before Catalytic Converter And Oxygen Sensor (O2S) Heater
-Z19- (bank 1 Sensor 1)
3
-
3-pin Harness Connector 1 Gray For Engine Speed (RPM) Sensor -G28-
4
-
3-pin Harness Connector, Blue For Knock Sensor (KS) 2-G66-
5
-
3-pin Harness Connector, Green For Knock Sensor (KS) 1-G61-