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.
2022 Subaru WRX Base, Automatic CVT TransFACTORY OEM SERVICE PROCEDURE
Engine Wiring Harness: Removal
- Remove the battery. Ref. to STARTING/CHARGING SYSTEMS (H4DOTC)>BATTERY>REMOVAL
- Remove the intake manifold assembly. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DOTC)>INTAKE MANIFOLD ASSEMBLY>REMOVAL
- Remove the fuel insulator. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DOTC)>FUEL INSULATOR>REMOVAL
- Remove the bolts which secure the side engine oil cooler pipe.
- Disconnect each connector to remove the engine wiring harness. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DOTC)>GENERAL DESCRIPTION>COMPONENT>ENGINE WIRING HARNESS
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.
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