Emission Control Systems: Diagrams

Vacuum Hose Connection Diagram





1 Vacuum actuator

• For cylinder bank 1.

2 Vacuum actuator

• For cylinder bank 2.

3 Vacuum tube

4 Exhaust Gas Recirculation (EGR) cooler switch over valve (N345)

• For cylinder bank 1.

• Component location: at right rear wheel housing.

5 EGR cooler switch over valve 2 (N381)

• For cylinder bank 2.

• Component location: at right front wheel housing.

6 Tandem pump

• Component location: Cylinder bank 1.

• For fuel and vacuum supply.

• Must not be disassembled.

7 From brake booster