For 1990-2009 cars

### Removal Procedure

1. Remove the spark plug wire. Refer to Spark Plug Wire Replacement.
2. Loosen the spark plug 1-2 turns.
3. Brush or using compressed air, blow away any dirt from around the spark plug.
4. Remove the spark plug.

If removing more than one plug, place each plug in a tray marked with the corresponding cylinder number.

### Installation Procedure

1. Correctly position the spark plug washer.
2. Inspect the spark plug gap. Adjust the gap as needed. Refer to Ignition System Specifications.
3. Hand start the spark plug in the corresponding cylinder.

Caution: Refer to Fastener Caution in the Preface section.

4. Tighten the spark plug.

Tighten
Tighten the plug to 20 N·m (15 lb ft).

5. Install the spark plug wire. Refer to Spark Plug Wire Replacement.