Impreza RS Coupe AWD F4-2.5L SOHC (1999)
5. Remove air intake duct and air cleaner upper cover as a unit.
6. Loosen clamp which connects air intake duct to mass air flow sensor.
7. Remove mass air flow sensor from air cleaner upper cover.
8. Installation is in the reverse order of removal.
Tightening torque:
7.4 ± 2.0 Nm (0.75 ± 0.2 kg.m, 5.4 ± 1.4 ft.lb)
CAUTION: Before installing air cleaner upper cover, align holes with protruding portions of air cleaner lower case, then secure upper cover to
lower case.