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Subaru
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2019
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WRX Base
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Repair and Diagnosis (Single Page)
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Engine Performance
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System
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Engine Control System (Diagnostics) (Except For STI) (1 Of 4)
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Diagnostic Procedure With Diagnostic Trouble Code (DTC)
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DTC P014C: A/F/O2 Sensor Slow 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)
Operation time of main feedback
≥ 5 s
Engine speed
≥ 1000 rpm
Amount of intake air
≥ 10 g/s (0.35 oz/s)