Fuel Delivery and Air Induction

Intake Manifold Vacuum Hose Connection Diagram






1 Cylinder Bank 1 Cylinder Head Cover

2 Vacuum Hose

3 Cylinder Head Coolant Valve (N489)

4 Cylinder Head Coolant Valve (N489) Vacuum Actuator

5 Cylinder Bank 2 Intake Manifold Flap Vacuum Actuator

• For cylinder bank 2

• Check with hand vacuum pump (VAS 6213)

6 Intake Manifold Tuning Valve (N156)

7 To Vacuum Reservoir

• Component location: under the intake manifold

8 Intake Manifold Runner Control Valve (N316)

• To remove and install, remove intake manifold

9 Left Secondary Air Injection Combination Valve

• Secondary air injection combination valve, checking functionality and for leaks.

10 Secondary Air Injection Solenoid Valve 2 (N320)

11 Secondary Air Injection Solenoid Valve (N112)

12 Right Secondary Air Injection Combination Valve

• Removing and installing, engine mechanical

• Secondary air injection combination valve, checking functionality and for leaks.

13 Vacuum Hose

14 Cylinder Bank 1 Intake Manifold Flap Vacuum Actuator

• For cylinder bank 1

• Check with hand vacuum pump (VAS 6213)

15 Intake Manifold Change-Over Valve Vacuum Actuator

• Check with hand vacuum pump (VAS 6213)

16 To Vacuum Reservoir