For 1990-2009 cars

### Removal Procedure

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

1. Disconnect the negative battery cable.
2. Remove the timing belt. Refer to Timing Belt Replacement.
3. Remove the engine cover bolts.
4. Remove the engine cover.
5. Disconnect the ignition wires from the spark plugs.
6. Disconnect the crankcase ventilation tubes from the valve cover.
7. Disconnect the camshaft position (CMP) sensor.
8. Remove the valve cover nuts.
9. Remove the valve cover washers.
10. Remove the valve cover and the valve cover gasket.

Caution: Use extreme care when installing the camshaft not to nick, scratch, or damage the camshaft lobes or bearing surfaces.

11. While holding the intake camshaft firmly in place, remove the intake camshaft gear bolt.
12. Remove the intake camshaft gear.
13. While holding the exhaust camshaft firmly in place, remove the exhaust camshaft gear bolt.
14. Remove the exhaust camshaft gear.

### Installation Procedure

Caution: Use extreme care when installing the camshaft not to nick, scratch, or damage the camshaft lobes or bearing surfaces.

1. Install the intake camshaft gear.

Caution: Refer to Fastener Caution in the Preface section.

2. While holding the intake camshaft firmly in place, install the intake camshaft gear bolt.

Tighten
Tighten the intake camshaft gear bolt to 67.5 N·m (49 lb ft).

3. Install the exhaust camshaft gear.
4. While holding the exhaust camshaft firmly in place, install the exhaust camshaft gear bolt.

Tighten
Tighten the exhaust camshaft gear bolt to 67.5 N·m (49 lb ft).

5. Connect the engine ventilation crankcase ventilation tubes to the valve cover.
6. Connect the ignition wires to the spark plugs.
7. Install the timing belt. Refer to Timing Belt Replacement.
8. Install the engine cover.
9. Connect the negative battery cable.