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.
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HOMESERVICE MANUALSSUBARU2002LEGACY L SEDAN AWD F4-2.5L SOHCREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTECHNICAL SERVICE BULLETINS
2002 Subaru Legacy L Sedan AWD F4-2.5L SOHC
Computers and Control Systems: Technical Service Bulletins
2002 Subaru Legacy L Sedan AWD F4-2.5L SOHCSECTION Technical Service Bulletins
- Customer Interest
- By Symptom
- All Technical Service Bulletins
- Engine Controls - Rough Idle/Misfire Diagnostic Tips
- Engine Controls - A/F, O2 Sensor Diagnostic Information
- Ignition System - DTC's P0301/P0302/P0303/P0304
- Engine Controls - DTC P1700, P1711, P1712
- Engine - Rough Idle/CEL After Battery Disconnect
- Emissions - OBD Readiness Test Procedure
- Engine Controls, M/T - Service Manual Corrections
- A/T - Harsh AWD Engagement/Code 45 Set
- Service Manual - Multiple Systems Updates/Corrections
- Emissions - OBD II Data Link Connector Locations
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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.