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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 Aa
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Drive Cycle Aa

DTC Item Condition Number of driving cycles on the detecting condition
P1449 EVAP SYSTEM CLOG DETECTED (AIR FILTER) - 2
WARNING: When performing the drive cycle AA on the public road, be very careful of the traffic condition and the safe driving must be the high priority.
  1. Drive three times according to the drive pattern described below.
    G13650447Courtesy of SUBARU OF AMERICA, INC.
  2. 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 .