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2017
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Forester 2.0XT Touring
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Repair and Diagnosis
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Engine Performance
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Testing & Diagnosis
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Engine Control System (Diagnostics) (P000A To P015B) (H4DOTC)
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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
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DTC P015A A/F/O2 Sensor Delayed Response - Rich To Lean Bank 1 Sensor 1
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Execution Condition
Execution Condition
Secondary Parameters
Execution condition
Battery voltage
≥ 10.9 V
Barometric pressure
> 75 kPa (562.6 mmHg, 22.2 inHg)
Accelerator position
> 0%
Operation time of main feedback
≥ 5 s
Engine speed
≥ 1000 RPM
Amount of intake air
≥ 10 g/s (0.35 oz/s)