Intake Manifold Collector

INTAKE MANIFOLD COLLECTOR


Removal and Installation












CAUTION:
Do not remove power valves.

REMOVAL

WARNING:
To avoid the danger of being scalded, never drain the coolant when the engine is hot.

CAUTION:
The gasket for intake manifold collector (upper) is secured together with intake manifold collector
(lower) bolt. Thus, when replacing only the upper gasket the lower gasket must also be replaced.
1. Remove the cowl top. Refer to Coupe (Coupe models) or Sedan (Sedan models).
2. Remove the engine room cover.
3. Remove front air duct and air duct hose. Refer to Service and Repair.
4. Partially drain the coolant when the engine is cool. Refer to Service and Repair.

NOTE:
This step is only required when removing electric throttle control actuator from the vehicle.





5. Remove the electric throttle control actuator bolts in the reverse order as shown and remove the electric throttle control actuator and position aside.

CAUTION:
- Handle carefully to avoid any shock to the electric throttle control actuator.
- Do not disassemble.
6. Disconnect the following:
- Power brake booster vacuum hose
- Fuel injector electrical connectors
- PCV hose
- Electric throttle control actuator electrical connector
- EVAP canister purge hose

CAUTION:
- Cover any engine openings to avoid the entry of any foreign material.
7. Remove the EVAP canister purge volume solenoid valve bracket bolt. Position the valve aside.





8. Loosen the intake manifold collector bolts in the order as shown using power tool, and remove the intake manifold collector and gasket.
9. If necessary remove the following components:
- VIAS control solenoid valve
- EVAP canister purge volume control solenoid valve

INSTALLATION
Installation is in the reverse order of removal.





- Tighten intake manifold collector bolts in the order as shown.





- Tighten electric throttle control actuator bolts in the order shown.

NOTE:
After installation, it is necessary to re-calibrate the electric throttle control actuator as follows:
1. Perform the "Throttle Valve Closed Position Learning" when harness connector of the electric throttle control actuator is disconnected. Refer to Description.
2. Perform the "Idle Air Volume Learning" when the electric throttle control actuator is replaced. Refer to Description.