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Home >> Subaru >> 2018 >> WRX STI >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics - Introduction) (STI) >> Drive Cycle >> Procedure >> Drive Cycle Aa

Drive Cycle Aa

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DTC Item Condition
P1449 EVAP SYSTEM CLOG DETECTED (AIR FILTER) -

Diagnostic procedure: 

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.
    G12456669Courtesy of SUBARU OF AMERICA, INC.
  2. Read the temporary code using the Subaru Select Monitor or general scan tool. Ref. to ENGINE (DIAGNOSTICS) (STI)>Read Diagnostic Trouble Code (DTC)>OPERATION .