For 1990-2009 cars

### Removal Procedure

Warning: Refer to Battery Disconnect Warning in the Preface section.

1. Disconnect the negative battery cable.
2. Disconnect the positive crankcase ventilation (PCV) hose from the air intake duct.
3. Disconnect the air intake duct from the throttle body.
4. Retract the throttle body wiring connector lock (3).
5. Disconnect the throttle body connectors by performing the following:

• | Do not use any mechanical device such as a screwdriver to disengage the harness connector from the throttle body.

• | When retracting the throttle wiring connector lock, take care not to disengage the lock from the connector.

• | Do not pull on the connector wires.

• | While pressing the connector latch in the direction of the arrow (4), disconnect the throttle body wiring connector.

• | Disconnect the throttle body connector.

6. Remove the four bolts, attaching the throttle body to the upper intake manifold.
7. Remove the throttle body and gasket.

### Installation Procedure

1. Ensure the throttle body and upper intake manifold mating surfaces are clean and free of foreign material.

Caution: Refer to Fastener Caution in the Preface section.

2. Install the throttle body with a new throttle body to upper intake manifold gasket and tighten to 10 N·m (89 lb in).
3. Connect the wiring harness connector to the throttle body, ensuring the connector latch and connector slide have fully engaged.