For 1990-2009 cars

### Removal Procedure

Notice: This engine is equipped with an aluminum cylinder head. Allow the engine to cool before removing spark plugs. Removing the spark plugs from an engine at operating temperature may damage the spark plug threads in the cylinder head. Also be sure to clean any dirt or debris from around spark plug holes prior to removing spark plugs.

1. Remove the two fasteners and the ignition coil cover (2) from the valve cover (1).
2. Disconnect the ignition coil electrical connector.
3. Remove the bolt (1) and the ignition coil (2) for each cylinder.
4. Remove each spark plug (3) from the cylinder head.
5. Inspect the condition of the spark plugs. Refer to Spark Plug Inspection .

### Installation Procedure

1. Check for the correct spark plug gap and adjust as necessary. Refer to Ignition System Specifications .

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

2. Install the spark plugs (3) into the cylinder head.

Tighten
Tighten the spark plug to 25 N·m (18 lb ft).

3. Install the ignition coil (2) to each spark plug and secure with the bolt (1).

Tighten
Tighten the ignition coil bolts to 10 N·m (89 lb in).

4. Connect the ignition coil electrical connectors.
5. Install the ignition coil cover (2) to the valve cover (1).
6. Secure the ignition coil cover (2) with the two fasteners.

Tighten
Tighten the two fasteners to 3 N·m (26 lb in).