Variable Valve Timing Actuator: Locations

Fuel injection , servicing

Component location overview

Fuel Injection System Components:

1. Air filter housing
2. Heated Oxygen Sensor (HO2S) -G39-* before catalytic converter, 50 Nm
3. Oxygen Sensor (O2S) behind Three Way Catalytic Converter (TWC) -G130-*, 50 Nm
4. Engine Coolant Temperature (ECT) sensor -G62-*
5. Recirculating valve for turbocharger -N249-*/**
6. Secondary Air Injection (AIR) solenoid valve -N112-*/**

7. Throttle valve control module (J338)*
Tighten to 10 Nm
When replacing, adapt Engine Control Module (ECM).

8. Clutch vacuum vent valve switch -F36-*, brake light switch -F-*, brake pedal switch -F47-* & Throttle Position (TP) sensor -G79-* & sender -2- for accelerator pedal position -G185-* in driver-side footwell

9. Black 4-pin harness connector for Heated Oxygen Sensor (HO2S) 1 before Three Way Catalytic Converter (TWC) -G39- and oxygen sensor heater
10. Brown 4-pin harness connector for Heated Oxygen Sensor (HO2S) 2 behind Three Way Catalytic Converter (TWC) -G130- and oxygen sensor heater
11. Grey 3-pin harness connector for Engine Speed (RPM) sensor -G28-
12. Green 3-pin harness connector for Knock Sensor (KS) 1 -G61-
13. Blue 3-pin harness connector for Knock Sensor (KS) 2 -G66-
14. Secondary Air Injection (AIR) pump relay -J299-*/**

15. Engine Control Module (ECM)* (control module for Motronic - J220-)
Checking voltage supply
Procedure to follow after open circuit in voltage supply

16. Intake Air Temperature (IAT) sensor
Tighten to 10 Nm

17. Engine speed sensor -G28-*
Inductive sensor
Tighten to 10 Nm

18. Charge air pressure sensor -G31-*
19. Knock Sensor (KS) 2 -G66-* item no. 8
20. Knock Sensor (KS) 1 -G61-* item no. 7
21. Fuel pressure regulator
22. Camshaft Position (CMP) sensor -G163-* item no. 11
23. Fuel injectors (-N30- through -N33-)*
24. Ignition coil with power output stage (-N70-, -N127-, -N291-, -N292-) item no. 2

25. Wastegate bypass regulator valve -N75-
Boost pressure system:

26. Ground connection on the engine bracket, right side
27. Mass Air Flow (MAF) sensor -G70-*
28. Secondary Air Injection (AIR) pump motor -V101-*