VW Passat & Audi A4 1990-2000

Audi A4 2.7L

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Fig. Audi A4 2.7L Component Locations



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Fig. 2.7L Components Continued

Note the following:



Diagnostic connector, in front knee protection, driver side
 
Fuel Pump relay (J17) relay position 4 of central electrics left side under dash panel
 
Throttle Position sensor (TPS) (G79) and Sender (G185) for accelerator pedal position in footwell on accelerator pedal.
 

Key List for gnam 93224vwg63:

1. Harness connector for Oxygen sensor 1 (O2S) behind 3-way catalytic converter (G130) and Heater for Lambda probe 1 (Z29), 4-pin green

2. Harness connector for Oxygen sensor 2 (O2S) behind 3-way catalytic converter (G131) and Heater for Lambda probe 2 (Z30), 4-pin green

3. Harness connector for Heated Oxygen sensor (HO2S) and heater, 4-pin black

4. 3-pin harness connector for knock sensor (KS) 1 (G61)

5. Engine Coolant Temperature (ECT) sensor (G62). On cooling pipe behind cylinder bank 1

6. Wastegate Bypass Regulator Valve (N75)

7. EVAP Canister Purge Regulator Valve (N80)

8. Sensor 1 for exhaust temperature (G235) at rear of intake manifold on the left hand side.

9. Secondary Air Injection (AIR) Solenoid Valve (N112), only on vehicles with automatic transmission

10. Secondary Air Injection (AIR) Pump Motor (V101), only on vehicles with automatic transmission

11. Sensor 2 for exhaust temperature (G236). On vehicles with automatic transmission the sensor is located with sensor 1 for exhaust temperature (G235) at Position 8. Both sensors are located behind each other

12. Recirculating valve for turbocharger (N249)

13. Fuel pressure regulator

14. Camshaft Position (CMP) sensor (G40), Cylinder bank 2

15. Secondary Air Injection (AIR) Pump Relay (J299). Only on vehicles with automatic transmission

16. Motronic Engine Control Module (ECM) (J220)

17. 3-pin harness connector for Engine Speed (RPM) sensor (G28), grey

18. 3-pin harness connector for knock sensor (KS) 2 (G66)

19. Harness connector for Heated Oxygen sensor 2 (HO2S) (G108) and Oxygen sensor (O2S) Heater (Z28), 4-pin black

20. Valve 2 for camshaft adjustment (N208)

21. Throttle Valve Control Module (J338), with Throttle drive (power accelerator actuation) (G186), Angle sensor 1 for throttle drive (power accelerator actuation) (G187) and Angle sensor 2 for throttle drive (power accelerator actuation) (G188)

22. Charge Air Pressure sensor (G31). In rubber below before Throttle Valve Control Module

23. Camshaft Position (CMP) sensor 2 (G163) Cylinder bank 1

24. Power output stage (N192) for ignition coils cylinder bank 2

25. Power output stage (N122) for ignition coils cylinder bank 1

26. Valve 1 for camshaft adjustment (N205)

27. Heated Oxygen sensor (HO2S) (G39) with Oxygen sensor (O2S) Heater (Z19)

28. knock sensor 1 (KS) (G61)

29. knock sensor 2 (KS) (G66)

30. Engine Speed (RPM) sensor (G28). In transmission above sensor wheel

31. Heated Oxygen sensor 2 (HO2S) (G108) and Oxygen sensor (O2S) Heater (Z28)

32. Ignition coils cylinder bank 2

33. Fuel Injectors

34. Intake Air Temperature (IAT) sensor (G42). Under intake manifold at the front, near the throttle valve control module

35. 2-pin harness connector for intake air temperature sensor (Measurements must be carried out at this connection)

36. Fuel Injectors

37. Ignition coils cylinder bank 1

38. Mass Airflow (MAF) sensor (G70)

 
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