Impreza L Sport Wagon AWD F4-2.2L SOHC (2001)
2. Remove resonator chamber.
3. Disconnect spark plug cords from spark plugs (#1 and #3 cylinders).
4. Disconnect blow-by hose from rocker cover (RH).
5. Lift-up the vehicle.
6. Remove under cover.
7. Place suitable container under the vehicle.
8. Lower the vehicle.
9. Remove the timing belt cover (RH) bolt.