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Home >> Subaru >> 2022 >> Forester Limited >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) (2 Of 4) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P050A: Cold Start Idle Control System Performance >> General Description >> Execution Condition
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Execution Condition

EXECUTION CONDITION - IDLE SPEED DIAGNOSIS

Secondary parameters Execution condition DTC
Battery voltage 10.9 V or more  
Barometric pressure 75.1 kPa (563 mmHg, 22.2 inHg) or more  
Vehicle speed 2km/h (1.2MPH) or less  
Throttle position Less than 0.25° P050A
Integrated value of intake air amount Less than value of Map 1  
Elapsed time after gear position change (P ←→ D or N ←→ D) 2000 ms or more  
Elapsed time after starting the engine 2000 ms or more  
EXECUTION CONDITION - FINAL IGNITION TIMING DIAGNOSIS: IDLE

Secondary parameters Execution condition DTC
Battery voltage 10.9 V or more P050B
Barometric pressure 75.1 kPa (563 mmHg, 22.2 inHg) or more  
Throttle position Less than 0.25°  
Integrated value of intake air amount Less than value of Map 2  
Elapsed time after gear position change (P ←→ D or N ←→ D) 2000 ms or more  
Target retard amount (N range) Value of Map 3 or less  
Target retard amount (D range) Value of Map 4 or less  
MAP 1 SPECIFICATION

Engine coolant temperature at first engine start (°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)) 947 (33.41) 879 (31) 811 (28.59) 745 (26.27) 669 (23.61) 608 (21.44) 571 (20.12) 578 (20.4)
Engine coolant temperature at first engine start (°C (°F)) 40 (104) 50 (122) 60 (140) 70 (158) 80 (176) 90 (194) 100 (212) 110 (230)
Integrated value of intake air amount (g (oz)) 708 (24.95) 800 (28.22) 865 (30.51) 936 (33.02) 0 (0) 0 (0) 0 (0) 0 (0)
MAP 2 SPECIFICATION

Engine coolant temperature at first engine start (°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)) 947 (33.41) 879 (31) 811 (28.59) 745 (26.27) 669 (23.61) 608 (21.44) 571 (20.12) 578 (20.4)
MAP 2 SPECIFICATION

Engine coolant temperature at first engine start (°C (°F)) 40 (104) 50 (122) 60 (140) 70 (158) 80 (176) 90 (194) 100 (212) 110 (230)
Integrated value of intake air amount (g (oz)) 708 (24.95) 800 (28.22) 865 (30.51) 936 (33.02) 0 (0) 0 (0) 0 (0) 0 (0)
MAP 3 (N RANGE) SPECIFICATION

Engine coolant temperature (°C (°F)) -40 (-40) -30 (-22) -20 (-4) -10 (14) 0 (32) 10 (50) 20 (68) 30 (86)
Target retard amount (°CA) 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5
MAP 3 (N RANGE) SPECIFICATION

Engine coolant temperature (°C (°F)) 40 (104) 50 (122) 60 (140) 70 (158) 80 (176) 90 (194) 100 (212) 110 (230)
Target retard amount (°CA) 7.5 7.5 7.5 4.5 4.5 4.5 4.5 4.5
MAP 4 (D RANGE) SPECIFICATION

Engine coolant temperature (°C (°F)) -40 (-40) -30 (-22) -20 (-4) -10 (14) 0 (32) 10 (50) 20 (68) 30 (86)
Target retard amount (°CA) -1.5 -1.5 -1.5 -1.5 -1.5 -1.5 -1.5 -1.5
MAP 4 (D RANGE) SPECIFICATION

Engine coolant temperature (°C (°F)) 40 (104) 50 (122) 60 (140) 70 (158) 80 (176) 90 (194) 100 (212) 110 (230)
Target retard amount (°CA) -1.5 -2.5 -2.5 -2.5 -2.5 -2.5 -2.5 -2.5