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 MANUALSSUBARU2014FORESTER 2.5I, ENG CD FB25BA, STANDARD TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCEFUEL DELIVERYFUEL INJECTION SYSTEM - MECHANISM & FUNCTION (H4SO)CONTROL SYSTEMFUEL PUMP CONTROL
2014 Subaru Forester 2.5i, Eng CD FB25BA, Standard Trans
Fuel Pump Control
2014 Subaru Forester 2.5i, Eng CD FB25BA, Standard TransSECTION Fuel Pump Control
Using the signal from the crankshaft position sensor, the ECM controls operation of the fuel pump by turning its reley ON or OFF. To improve safety, the fuel pump is stopped if the engine stalls with the ignition switch ON.
| Ignition switch ON | Fuel pump relay | Fuel pump |
|---|---|---|
| A certain period of time after ignition switch is turned ON | ON | Operates |
| While cranking the engine | ON | Operates |
| While engine is operating | ON | Operates |
| When engine stops | OFF | Does not operate |
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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.