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.

2015 Subaru WRX STIFACTORY OEM SERVICE PROCEDURE

Wastegate Control Solenoid Valve: Removal

Disconnect the ground cable from battery.
Remove the vacuum hose from clip (A), and remove the bolt (B) which secures the wastegate control solenoid valve.
Remove the bolts (C) which secure solenoid valve bracket onto intake manifold.

Fig 1: Identifying Vacuum Hose Clip And Wastegate Control Solenoid Valve Bolt
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the connector (A) from the wastegate control solenoid valve.
Disconnect the vacuum hose (B) and air control hose (C) from the wastegate control solenoid valve, and remove the wastegate control solenoid valve.

Fig 2: Identifying Wastegate Control Solenoid Valve Connector And Vacuum Hose

Courtesy of SUBARU OF AMERICA, INC.

Factory Service Tools

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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.