FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Boost Pressure Regulation and Vacuum Control System, Connection Diagram For Vehicles Up to 06.03



Boost Pressure Regulation And Vacuum Control System, Connection Diagram For Vehicles Up To 06.03







1. Mechanical recirculation valve
2. Wastegate Bypass Regulator Valve -N75-
3. Pressure regulator valve for crankshaft housing ventilation
4. Secondary Air Injection (AIR) Pump Motor -V101-
5. Air filter
- With Mass Air Flow (MAF) Sensor -G70-
6. Check valve
- Installed position: Arrow on valve points in direction of flow, as shown in illustration
7. To EVAP canister
8. Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-
9. Turbocharger
10. Combination valve for secondary air injection (AIR)
11. To brake booster
12. Check valve
- Installed position: Arrow on valve points in direction of flow, as shown in illustration
13. Check valve
- Installed position: Arrow on valve points in direction of flow, as shown in illustration
14. Crankshaft housing ventilation
15. Vacuum reservoir
- Component location: Under wheelhousing liner in front left wheelhouse
16. Check valve
- Installed position: Arrow on valve points in direction of flow, as shown in illustration
17. Secondary Air Injection (AIR) Solenoid Valve -N112-
- Component location: Below intake manifold
18. To Leak Detection Pump (LDP) -V144-
19. Check valve
- Installed position: Arrow on valve points in direction of flow, as shown in illustration
20. Charge air cooler
- With Charge Air Pressure Sensor -G31-
21. Recirculating valve for turbocharger -N249-
- Component location: Below intake manifold
22. Vacuum diaphragm for boost pressure regulation
- When combination valve is opened, mechanical boost pressure regulation valve in turbocharger is opened and secondary air is thereby channeled past turbocharger directly to catalytic converter