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Subaru
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2015
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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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Diagnostic Trouble Code (DTC) Detecting Criteria (H4DOTC) (Except STI)
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Diagnostic Trouble Code (DTC) Detecting Criteria
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DTC P2196 O2 Sensor Signal Biased/Stuck Rich (Bank 1 Sensor 1)
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Enable Conditions
Enable Conditions
ENABLE CONDITIONS
Secondary Parameters
Enable Conditions
Battery voltage
≥ 10.9 V
Main feedback
In operation
Amount of intake air
≥ 6 g/s (0.21 oz/s)
Estimated temperature of the rear oxygen sensor element
≥ 450°C (842°F)