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Subaru
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2021
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WRX STI
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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) (2.5L) (1 Of 4)
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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
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DTC P0101: Mass Or Volume Air Flow Sensor "A" Circuit Range/Performance
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Execution Condition
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Low
Execution Condition: Low
Secondary parameters
Execution condition
Engine speed
≥1600 rpm
Throttle position
≥12°
Intake manifold pressure (with atmospheric pressure compensation)
≥73.3 kPa
(550 mmHg, 21.7 inHg)