For 1990-2009 cars

### Lower Intake Manifold Assemble Procedure

1. Install the upper-to-lower intake manifold alignment pins.
2. Install the fuel injector rail.

Caution: Refer to Fastener Caution in the Preface section.

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

### Upper Intake Manifold Assemble Procedure

1. If removed, install the NEW expansion plugs into the upper intake manifold.
2. Install the NEW throttle body gasket.
3. Install the throttle body.
4. Install the throttle body bolts 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.
2. Install the upper intake manifold to the lower intake manifold.
3. Install the upper-to-lower intake manifold bolts and tighten to 23 N·m (17 lb ft).