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Home >> Subaru >> 2021 >> WRX STI >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostics) (2.5L) (1 Of 4) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0030: A/F/O2 Heater Control Circuit Bank 1 Sensor 1 >> Execution Condition

Execution Condition

Secondary parameters Execution condition
Battery voltage ≥ 10.9 V
(A/F sensor heater control duty > 30%
Elapsed time from above) ≥42000 ms
Non-operating time of fuel shut-off ≥20000 ms
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