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Home >> Subaru >> 2021 >> WRX Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) (2.0L) - Introduction >> Drive Cycle >> Procedure >> Drive Cycle Y
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Drive Cycle Y

DTC Item Condition Number of driving cycles on the detecting condition
P013E O2 SENSOR DELAYED RESPONSE - RICH TO LEAN BANK 1 SENSOR 2 - 2
P013F O2 SENSOR DELAYED RESPONSE - LEAN TO RICH BANK 1 SENSOR 2 - 2
WARNING: When performing the drive cycle Y on the public road, be very careful of the traffic condition and the safe driving must be the high priority.
  1. Perform the Clear Memory Mode. Refer to ENGINE (DIAGNOSTICS) (W/O STI)>CLEAR MEMORY MODE .
  2. Drive according to the drive pattern described below.
    G13650445Courtesy of SUBARU OF AMERICA, INC.
  3. Read the temporary code using the Subaru Select Monitor or general scan tool. Refer to ENGINE (DIAGNOSTICS) (W/O STI)>READ DIAGNOSTIC TROUBLE CODE (DTC)>OPERATION .
    NOTE:
    • Acceleration and constant speed conditions may be adjusted depending on road conditions.
    • If a diagnostic value is not input after driving, do not stop the engine and repeat the procedure from (Y) again.
    • Do not use the cruise control.