For 1990-2009 cars

### Removal Procedure

1. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection.
2. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement.
3. Disconnect the power steering oil pressure switch connector (1) and the air conditioner pressure sensor connector (2).
4. Disconnect the brake vacuum hose.
5. Disconnect the PCV breather hose.
6. Disconnect the intake temperature/pressure sensor connector.
7. Disconnect the accelerator cable.
8. Disconnect the canister hose from the intake manifold.
9. Remove intake manifold front bracket upper retaining bolts (1).
10. Remove the fuel rail.
11. Remove the EGR pipe.
12. Disconnect the VGIS solenoid valve (3).
13. Remove the intake manifold rear bracket bolts (2).
14. Remove the intake manifold rear bracket (1).
15. Remove the engine wiring harness from the intake manifold.
16. Remove the intake manifold (1).
17. Remove the intake manifold gasket.

### Installation Procedure

1. Install the intake manifold (1) with the new gasket.

Caution: Refer to Fastener Caution in the Preface section.

2. Install the intake manifold bolts.

Tighten
Tighten the intake manifold retaining bolts to 10 N·m (7.4 lb ft).

3. Install the intake manifold rear bracket (1).
4. Install the intake manifold rear bracket retaining bolts (2).

Tighten

• | Tighten the bracket upper bolts to 25 N·m (18.4 lb ft).

• | Tighten the bracket lower bolts to 50 N·m (36.8 lb ft).

5. Install the EGR pipe.
6. Install the fuel rail. Refer to Fuel Injection Fuel Rail Assembly Replacement.
7. Install the intake manifold front bracket upper retaining bolts (1).

Tighten
Tighten the intake manifold support bracket upper bolts to 2 N·m (1.5 lb ft).

8. Connect the brake vacuum hose.
9. Connect the PCV breather hose.
10. Connect the intake temperature/pressure sensor connector.
11. Connect the accelerator cable.
12. Connect the canister hose from the intake manifold.
13. Connect the power steering oil pressure switch connector (1) and the air conditioner pressure sensor connector (2).
14. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement.
15. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection.