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 MANUALSSUBARU2014OUTBACK 2.5I, STANDARD TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCEFUEL DELIVERYFUEL INJECTION SYSTEM - MECHANISM & FUNCTION (H4SO)CONTROL SYSTEMFUEL INJECTION CONTROLFUEL INJECTION DURATION
2014 Subaru Outback 2.5i, Standard Trans
Fuel Injection Duration
2014 Subaru Outback 2.5i, Standard TransSECTION Fuel Injection Duration
Fuel injection duration is basically determined as indicated below:
- While cranking the engine:
The duration defined below is used.
- Duration of fuel injection during engine start-up..... Determined according to the engine coolant temperature detected by the engine coolant temperature sensor.
- During normal operation:
The duration is determined as follows:
- Basic duration of fuel injection x Correction factors + Voltage correction time
- Basic duration of fuel injection..... The basic length of time fuel is injected. This is determined by two factors - the amount of intake air detected by the air flow sensor and the engine speed monitored by the crankshaft position sensor.
- Correction factors..... See the next section.
- Voltage correction time..... This is added to compensate for the time lag before operation of injector that results from variation in the battery voltage.
RENDER: 1.0x
NO RELATED
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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.