For 1990-2009 cars

### Lower Intake Manifold Assemble Procedure

1. Install the fuel injector rail.

Caution: Refer to Fastener Caution in the Preface section.

2. Install the fuel injector rail bolts and tighten to 10 N·m (89 lb in).
3. Install the fuel injector wiring harness connector.

### Upper Intake Manifold Assemble Procedure

1. Install the NEW throttle body gasket (2).
2. Install the throttle body (3).
3. Install the throttle body bolts (4) and tighten to 10 N·m (89 lb in).

### Upper to Lower Intake Manifold Assemble Procedure

Note: Do not reuse the upper-to-lower intake manifold gasket and the intake manifold-to-cylinder head sealing gaskets.

1. Install the NEW upper-to-lower intake manifold gaskets (3, 5).
2. Install the upper intake manifold (1) to the lower intake manifold (4).
3. Install the fuel injector wiring harness bracket (3).

Install the fuel injector wiring harness bracket bolt (2) to the upper intake manifold (1) and tighten to 10 N·m (89 lb in).

4. Install the fuel rail feed hose bracket (1).
5. Install the fuel rail feed hose bracket bolt (3) to the upper intake manifold (2) and tighten to 10 N·m (89 lb in).
6. Install the upper-to-lower intake manifold bolts (2) and tighten to 23 N·m (17 lb ft).