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Home >> Subaru >> 2019 >> Ascent Touring >> 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 >> Execution Condition
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Execution Condition

SECONDARY PARAMETERS AND EXECUTION CONDITION - IDLE SPEED DIAGNOSIS

Secondary parameters Execution condition DTC
Battery voltage
Barometric pressure
Vehicle speed
Throttle position
Integrated value of intake air amount
Time when the parking/neutral position switch does not change
Elapsed time after starting the engine
10.9 V or more
75.06 kPa (563.1 mmHg,
22.2 inHg) or more
1.9 km/h (1.2 MPH) or less
Less than 0.312%
Less than value of Map1
3000 ms or more
2000 ms or more
P050A
 
SECONDARY PARAMETERS AND EXECUTION CONDITION - FINAL IGNITION TIMING DIAGNOSIS (IDLE)

Secondary parameters Execution condition DTC
Battery voltage
Barometric pressure
Throttle position
Integrated value of intake air amount
10.9 V or more
75.06 kPa (563.1 mmHg,
22.2 inHg) or more
Less than 0.312%
Less than value of Map1
P050B
Time when the parking/neutral position switch does not change
Target retard amount
3000 ms or more
8.5° CA or more
 
ENGINE SPEED DESCRIPTION - FINAL IGNITION TIMING DIAGNOSIS (NON-IDLE)

Secondary parameters Execution condition DTC
Battery voltage
Barometric pressure
Integrated value of intake air amount
Target retard amount
10.9 V or more
75.06 kPa (563.1 mmHg,
22.2 inHg) or more
Less than value of Map2
8.5° CA or more
P050B
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)
Integrated value of intake air amount (g (oz)) 683 (24.09) 683 (24.09) 683 (24.09) 683 (24.09) 683 (24.09) 683 (24.09) 683 (24.09)
Engine coolant temperature at engine starting (°C (°F)) 30 (86) 40 (104) 50 (122) 60 (140) 70 (158) 75 (167)
Integrated value of intake air amount (g (oz)) 683 (24.09) 683 (24.09) 658 (23.21) 633 (22.33) 500 (17.64) 250 (8.82)
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)
Integrated value of intake air amount (g (oz)) 683 (24.09) 683 (24.09) 683 (24.09) 683 (24.09) 683 (24.09) 683 (24.09) 683 (24.09)
Engine coolant temperature at engine starting (°C (°F)) 30 (86) 40 (104) 50 (122) 60 (140) 70 (158) 75 (167)
Integrated value of intake air amount (g (oz)) 683 (24.09) 683 (24.09) 658 (23.21) 633 (22.33) 500 (17.64) 250 (8.82)