Subaru 2002 IMPREZA Service Manual page 772

FUEL INJECTION (FUEL SYSTEMS)
Tightening torque:
19 N·m (1.9 kgf-m, 14.0 ft-lb)
Tightening torque:
19 N·m (1.9 kgf-m, 14.0 ft-lb)
Tightening torque:
33 N·m (3.4 kgf-m, 24.3 ft-lb)
FUEL INJECTOR
2. LH SIDE
Install in the reverse order of removal.
NOTE:
Replace the O-rings with a new one.
B2M4132
Tightening torque:
5.0 N·m (0.51 kgf-m, 3.7 ft-lb)
B2M4130
Tightening torque:
5.0 N·m (0.51 kgf-m, 3.7 ft-lb)
B6M1237
FU(w/oOBD)-44
(A) O-ring
(B) Fuel injector
(C) Intake manifold protector
B2M3372A
H2M2994
H2M2995