Impreza WRX Wagon F4-2.0L DOHC Turbo (2002)
17. Disconnect the connectors from the engine coolant temperature sensor (A), oil pressure switch (B) and crankshaft position sensor (C).
18. Disconnect the knock sensor connector.
19. Disconnect the connector from the camshaft position sensor.
20. Disconnect the connector from the ignition coil.