Variable Induction System: Service and Repair

Intake Manifold Tuning (IMT) (changeover) components, removing and installing





Routing of vacuum hoses, Diagrams

1 - Vacuum solenoid
- Intake Manifold Tuning (IMT) valve, checking, Testing and Inspection
2 - Spring
3 - Vacuum hose
- From intake manifold, item 6, Service and Repair
4 - One-way valve
- Installation position: blue end to Y-piece
5 - To Secondary Air Injection (AIR) solenoid valve -N112-
6 - 6 Nm (53 in lb)
7 - Intake Manifold Tuning (IMT) valve -N156- (change over valve)
- Intake Manifold Tuning (IMT) valve, checking, Testing and Inspection
- Resistance: 25-35 Ohms
8 - Y-piece
9 - To fuel pressure regulator
- Location, item 5, Service and Repair
10 - T-piece
11 - 10 Nm (7 ft lb)
12 - Securing plate
13 - Rubber grommet
14 - Spacer sleeve
15 - Vacuum reservoir
- Location: In left wheel housing
- For intake manifold changeover with engine at full load
16 - Intake manifold
- Intake Manifold Tuning (IMT) valve, checking, Testing and Inspection
17 - Washer
- Conical side to intake manifold
18 - Seal
- Replace if damaged
19 - Change over barrel
20 - Seal
- For change over barrel