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Home >> Subaru >> 2019 >> WRX STI >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) (STI) (4 Of 4) >> Diagnostic Procedure With Diagnostic Trouble Code (DTC) >> DTC P2431: Secondary Air System Air Flow/Pressure Sensor Circuit Range/Performance Bank 1 >> Execution Condition
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Execution Condition

Secondary parameters Execution condition
Elapsed time after ignition switch to OFF < 60000 ms
Soaking time ≥60s
After secondary air system stops ≥3000 ms
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