Intake Manifold Connections and Throttle Valve Control Module, Assembly Overview

Intake Manifold Connections And Throttle Valve Control Module, Assembly Overview

Vehicles with engine codes AHA, ATQ







1. Intake manifold
2. To crankcase ventilation valve
and
3. To fuel pressure regulator
4. T-piece
5. To check valve
6. Vacuum hose
7. O-ring
- Replace if damaged
8. Bracket
- For change-over roller
9. 6 Nm
10. Intake Air Temperature (IAT) Sensor -G42-
- Resistance value
11. Intake air scoop
12. 10 Nm
13. To suction jet pump
- For vehicles with manual transmission
- Sealed with a cap on vehicles with automatic transmission
14. Oil seal
- Replace if damaged
15. 10 Nm
- Insert with locking fluid D 000 600 A2
16. Throttle valve control module -J338-
When replacing, adapt Engine Control Module (ECM)
17. Connection for coolant hoses
18. To Evaporative Emission (EVAP) canister purge regulator valve -N80-
19. To Leak Detection Pump (LDP) -V144-
20. Spacer plate with sealing ring
- Replace if damaged
21. To brake booster
and







Vacuum connections for valves

1. To vacuum actuator for variable intake manifold
2. To the combi-valves (Vehicles with secondary air injection system)
3. Secondary Air Injection (AIR) solenoid valve-N112- (Vehicles with secondary air injection system)
4. To secondary air injection solenoid valve (Vehicles with secondary air injection system)
5. To T-piece at intake manifold
6. Non-return valve
7. Intake manifold change-over valve
8. To vacuum reservoir in left wheel well
9. From T-piece at intake manifold
10. Fuel pressure regulator







Crankcase ventilation

1. Connection at ventilation housing
2. Distributor
3. Connection to left cylinder head cover
4. Ventilation valve (various versions)
5. Connection to right cylinder head cover







Connection for brake booster - vehicles with manual transmission

1. Suction jet pump (various versions)
2. Connection to intake manifold
3. To brake booster
4. Connection to intake air scoop







Connection for brake booster - vehicles with automatic transmission

Vehicles with automatic transmissions do not have a suction jet pump. The vacuum assist is supplied by the separate Brake system vacuum pump -V192-.
1. Non-return valve
2. Connection to intake manifold
3. To brake booster
4. Sealing cap for intake air scoop







Resistance value

The diagram applies for the Engine Coolant Temperature (ECT) Sensor -G62- and for the Intake Air Temperature (IAT) Sensor -G42-

The diagram is divided into two temperature ranges:
A. from 0 to 50 degrees C
B. from 50 to 105 degrees C

Example:
- 30 degrees C lies in range - A - and represents a resistance of 1.5 to 2.0 kohms
- 80 degrees C lies in range - B - and represents a resistance of 275 to 375 kohms