For 1990-2009 cars

### Removal Procedure

1. Remove the wiring harness (1) plug from the solenoid valve and the vacuum hoses (2). If necessary, remove the mounting straps from the wiring harness plug.
2. Remove the solenoid valve from the pre- volume chamber.

### Installation Procedure

1. Install the solenoid valve on the pre-volume chamber.
2. Install the wiring harness (1) plug to the solenoid valve and the vacuum hoses (2). Then, fasten the vacuum hoses to the wiring harness plug with the mounting strap.