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Home >> Subaru >> 2017 >> Forester 2.0XT Touring >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System (Diagnostics) (P0171 To P0685) (H4DOTC) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P050A Cold Start Idle Control System Performance >> Execution Condition

Execution Condition

Secondary Parameters Execution condition
<Idle speed diagnosis>
Battery voltage ≥ 10.9 V
Barometric pressure ≥ 75 kPa (563 mmHg, 22.2 inHg)
Vehicle speed ≤ 2 km/h (1.2 MPH)
Engine coolant temperature ≤ 75°C (167°F)
Throttle position < 0.37°CA
Integrated value of intake air amount < Value from Map
Elapsed time after gear position change
(P ←→ D or N ←→ D)
≥ 3000 ms
Elapsed time after starting the engine ≥ 2000 ms
<Final ignition timing diagnosis>  
Battery voltage ≥ 10.9 V
Barometric pressure ≥ 75 kPa (563 mmHg, 22.2 inHg)
Vehicle speed ≤ 2 km/h (1.2 MPH)
Engine coolant temperature ≤ 75°C (167°F)
Throttle position < 0.37°CA
Integrated value of intake air amount < Value from Map
Elapsed time after gear position change
(P ←→ D or N ←→ D)
≥ 3000 ms
Target retard amount ≥ 10°CA
MAP SPECIFICATION

Engine coolant temperature at engine starting °C (°F) -40 (-40) -30 (-22) -20 (-4) -10 (-14) 0 (32) 10 (50) 20 (68) 30 (86)
Integrated value of intake air amount g (oz) 833 (26.38) 833 (26.38) 750 (26.45) 683 (24.09) 683 (24.09) 683 (24.09) 633 (22.33) 633 (22.33)
Engine coolant temperature at engine starting °C (°F) 40 (104) 50 (122) 60 (140) 70 (158) 75 (167)
Integrated value of intake air amount g (oz) 607 (21.41) 607 (21.41) 553 (19.5) 467 (16.47) 467 (16.47)