Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Fuel Pipe
- Impreza model
(1) Purge control solenoid valve (2) Purge control solenoid valve bracket (3) Vacuum hose (4) Fuel pipe (5) Fuel delivery pipe A (6) Fuel pipe protector (7) Fuel pipe insulator No. 1 (8) Fuel pipe insulator No. 2 (9) Fuel pipe insulator No. 3 (10) High-pressure fuel delivery pipe ASSY (11) High-pressure fuel pump (12) O-ring (13) Gasket (14) Fuel delivery pipe B (15) Fuel pipe insulator No. 4 (16) High-pressure fuel delivery pipe (17) High-pressure fuel pump case (18) Fuel pump lifter Tightening torque: N.m (kgf-m, ft-lb)
T1: 6.4 (0.7, 4.7)
T2: 12 (1.2, 8.9)
T3: 19 (1.9, 14.0)
T4: 21 (2.1, 15.5)
T5: 48 (4.9, 35.4)
T6: Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO (EXCEPT FOR HEV))>HIGH PRESSURE FUEL DELIVERY PIPE>INSTALLATION .
- 2.0 L Crosstrek model
(1) Purge control solenoid valve (2) Purge control solenoid valve bracket (3) Vacuum hose (4) Fuel pipe (5) Fuel delivery pipe A (6) Fuel pipe protector No. 1 (7) Fuel pipe protector No. 2 (8) Fuel pipe insulator No. 1 (9) Fuel pipe insulator No. 2 (10) Fuel pipe insulator No. 3 (11) High-pressure fuel delivery pipe ASSY (12) High-pressure fuel pump (13) O-ring (14) Gasket (15) Fuel delivery pipe B (16) Fuel pipe insulator No. 4 (17) High-pressure fuel delivery pipe (18) High-pressure fuel pump case (19) Fuel pump lifter Tightening torque: N.m (kgf-m, ft-lb)
T1: 6.4 (0.7, 4.7)
T2: 12 (1.2, 8.9)
T3: 19 (1.9, 14.0)
T4: 21 (2.1, 15.5)
T5: 48 (4.9, 35.4)
T6: Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO (EXCEPT FOR HEV))>HIGH PRESSURE FUEL DELIVERY PIPE>INSTALLATION .
- 2.5 L Crosstrek model
(1) Purge control solenoid valve (2) Purge control solenoid valve bracket (3) Vacuum hose (4) Fuel pipe (5) Fuel delivery pipe A (6) Fuel pipe protector No. 1 (7) Fuel pipe protector No. 2 (8) Fuel pipe insulator No. 1 (9) Fuel pipe insulator No. 2 (10) Fuel pipe insulator No. 3 (11) High-pressure fuel delivery pipe ASSY (12) High-pressure fuel pump (13) O-ring (14) Gasket (15) Fuel delivery pipe B (16) High-pressure fuel delivery pipe (17) Fuel pump lifter (18) High-pressure fuel pump case Tightening torque: N.m (kgf-m, ft-lb)
T1: 6.4 (0.7, 4.7)
T2: 12 (1.2, 8.9)
T3: 19 (1.9, 14.0)
T4: 21 (2.1, 15.5)
T5: 48 (4.9, 35.4)
T6: Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO (EXCEPT FOR HEV))>HIGH PRESSURE FUEL DELIVERY PIPE>INSTALLATION .
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.