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Home >> Subaru >> 2018 >> Forester 2.5i Limited >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics - Introduction) (H4DO) >> Drive Cycle >> Procedure >> Drive Cycle Z
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Drive Cycle Z

DTC Item Condition Number of driving cycles on the detecting condition
P0068 MAP/MAF - THROTTLE POSITION CORRELATION - 2
P0101 MASS OR VOLUME AIR FLOW SENSOR "A" CIRCUIT RANGE/PERFORMANCE - 2
P219C CYLINDER 1 AIR-FUEL RATIO IMBALANCE - 2
P219D CYLINDER 2 AIR-FUEL RATIO IMBALANCE - 2
P219E CYLINDER 3 AIR-FUEL RATIO IMBALANCE - 2
P219F CYLINDER 4 AIR-FUEL RATIO IMBALANCE - 2
WARNING: When performing drive cycle Z on a public road, pay sufficient attention to the traffic condition and give the highest priority to safe driving.

Diagnostic procedure: 

  1. Drive according to the drive pattern described below.
    G12519057Courtesy of SUBARU OF AMERICA, INC.
  2. Read the temporary code using the Subaru Select Monitor or general scan tool. Ref. to ENGINE (DIAGNOSTICS) (H4DO)>Read Diagnostic Trouble Code (DTC)>OPERATION .