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Home >> Subaru >> 2016 >> WRX STI Limited >> Repair and Diagnosis >> Engine Performance >> System >> Diagnostic Trouble Code (DTC) Detecting Criteria >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P050A Cold Start Idle Control System Performance >> Execution Condition
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Execution Condition

Secondary Parameters Execution condition
< Idle speed diagnosis >
Battery voltage ≥ 10.9 V
Barometric pressure ≥ 75.1 kPa (563 mmHg, 22.2 inHg)
Vehicle speed ≤ 2 km/h (1.2 MPH)
Engine coolant temperature ≤ 60 °C (140 °F)
Throttle valve opening angle < 0.37 °
Intake air amount sum value < Value of Map 1
Elapsed time after gear position change ≥ 3000 ms
(P ↔ D or N ↔ D)  
Elapsed time after starting the engine ≥ 2000 ms
< Final ignition timing diagnosis >
Battery voltage ≥ 10.9 V
Barometric pressure ≥ 75.1 kPa (563 mmHg, 22.2 inHg)
Vehicle speed ≤ 2 km/h (1.2 MPH)
Engine coolant temperature ≤ 60 °C (140 °F)
Throttle valve opening angle < 0.37 °
Intake air amount sum value < Value of Map 2
Elapsed time after gear position change ≥ 3000 ms
(P ↔ D or N ↔ D)  
Target retard amount ≥ Value from Map 3
TEMPERATURE SPECIFICATION - MAP 1

Engine coolant temperature at engine starting °C (°F) -40 (-40) -30 (-22) -20 (-4) -10 (14) 0 (32) 10 (50) 20 (68) 30 (86) 40 (104) 50 (122) 60 (140) 70 (158) 80 (176) 90 (194) 100 (212) 110 (230)
Intake air amount sum value g(oz) 950 (33.51) 925 (32.62) 900 (31.74) 870 (30.68) 840 (29.63) 620 (21.87) 420 (14.81) 310 (10.93) 260 (9.17) 210 (7.41) 170 (6) 170 (6) 170 (6) 170 (6) 170 (6) 170 (6)
TEMPERATURE SPECIFICATION - MAP 2

Engine coolant temperature at engine starting °C (°F) -40 (-40) -30 (-22) -20 (-4) -10 (14) 0 (32) 10 (50) 20 (68) 30 (86) 40 (104) 50 (122) 60 (140) 70 (158) 80 (176) 90 (194) 100 (212) 110 (230)
Intake air amount sum value g(oz) 950 (33.51) 925 (32.62) 900 (31.74) 870 (30.68) 840 (29.63) 620 (21.87) 420 (14.81) 310 (10.93) 260 (9.17) 210 (7.41) 170 (6) 170 (6) 170 (6) 170 (6) 170 (6) 170 (6)
TEMPERATURE SPECIFICATION - MAP 3

Engine coolant temperature -40 °C (-40 °F) -30 °C (-22 °F) -20 °C (-4 °F) -10 °C (14 °F) 0 °C (32 °F) 10 °C (50 °F) 20 °C (68 °F) 30 °C (86 °F) 40 °C (104 °F) 50 °C (122 °F) 60 °C (140 °F)
Target retard amount 6 °CA 6 °CA 6 °CA 6 °CA 6 °CA 6 °CA 6 °CA 6 °CA 6 °CA 6 °CA 6 °CA