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Home >> Subaru >> 2017 >> WRX STI >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostics) (P2101 To U0423) (2.5L) >> 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 ≥ 60 s
After secondary air system stops ≥ 3000 ms