For 1990-2009 cars

### Removal Procedure

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

1. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection.
2. Disconnect the related sensor and actuator connector and pull engine wiring harness aside.
3. Disconnect the oil switch wiring connector.
4. Disconnect the A/C compressor connector.
5. Disconnect the manifold air temperature (MAT) sensor connector.
6. Disconnect the A/C pressure (ACP) sensor connector.
7. Disconnect the CAM position solenoid valve connectors (right/left).
8. Disconnect the manifold air pressure (MAP) sensor connector.
9. Disconnect the EVAP canister purge solenoid valve connector.
10. Disconnect the injectors connectors.
11. Disconnect the ignition coil connector.
12. Disconnect the camshaft position sensor (CPS) connectors (right/left).
13. Remove the ignition coil. Refer to Ignition Coil Replacement.
14. Detach the PCV clips from the PCV hose.
15. Remove the PCV hose from the cylinder head cover.
16. Remove the cylinder head cover bolts.
17. Remove the cylinder head cover (1).

### Installation Procedure

Note: Check and Confirm the damage or crack of the cylinder head gasket. If damaged or cracked, replace the new one.

1. Install the cylinder head cover (1) with the gasket.

Caution: Refer to Fastener Caution in the Preface section.

2. Install the cylinder head cover bolts and tighten to 8 N·m (70.8 lb in).
3. Install the PCV hose to the cylinder head cover.
4. Attach the PCV clips to the PCV hose.
5. Install the ignition coil. Refer to Ignition Coil Replacement.
6. Position the engine wiring harness and connect the related sensor and actuator connector.
7. Connect the oil switch wiring connector.
8. Connect the A/C compressor connector.
9. Connect the manifold air temperature (MAT) sensor connector.
10. Connect the A/C pressure (ACP) sensor connector.
11. Connect the CAM position solenoid valve connectors (right/left).
12. Connect the manifold air pressure (MAP) sensor connector.
13. Connect the EVAP canister purge solenoid valve connector.
14. Connect the injector connectors.
15. Connect the ignition coil connector.
16. Connect the camshaft position sensor (CPS) connectors (right/left).
17. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection.