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Home >> Subaru >> 2018 >> Crosstrek Base, Standard Trans >> 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 Execution condition
<Idle speed diagnosis>
Battery voltage 10.9 V or more
Barometric pressure 75.1kPa (563mmHg, 22.2inHg) or more
Vehicle speed 2km/h (1.2MPH) or less
Throttle position Less than 0.37°
Integrated value of intake air amount Less than value of Map1
Elapsed time after gear position change (P ↔ D or N ↔ D) 2000ms or more
Elapsed time after starting the engine 2000ms or more
<Final ignition timing diagnosis>
  • Idle diagnosis
 
Battery voltage 10.9 V or more
Barometric pressure 75.1kPa (563mmHg, 22.2inHg) or more
Throttle position Less than 0.37°
Integrated value of intake air amount Less than value of Map2
Elapsed time after gear position change (P ↔ D or N ↔ D) 2000ms or more
Target retard amount in CSERS Value of Map3 or less (before top dead center)
  • Non-idle diagnosis
 
Battery voltage 10.9 V or more
Barometric pressure 75.1kPa (563mmHg, 22.2inHg) or more
Integrated value of intake air amount Less than value of Map2
Retard amount Value of Map4 or more
MAP 1 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)) 1000 (35.26) 961 (33.9) 923 (32.54) 884 (31.18) 845 (29.82) 807 (28.46) 768 (27.1) 730 (25.74)
Engine coolant temperature at engine starting (°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)) 691 (24.38) 623 (21.96) 554 (19.54) 485 (17.12) 417 (14.7) 348 (12.28) 279 (9.85) 211 (7.43)
MAP 2 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)) 1000 (35.26) 961 (33.9) 923 (32.54) 884 (31.18) 845 (29.82) 807 (28.46) 768 (27.1) 730 (25.74)
Engine coolant temperature at engine starting (°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)) 691 (24.38) 623 (21.96) 554 (19.54) 485 (17.12) 417 (14.7) 348 (12.28) 279 (9.85) 211 (7.43)
MAP 3 SPECIFICATION

Engine coolant temperature (°C (°F)) -40 (-40) -30 (-22) -20 (-4) -10 (14) 0 (32) 10 (50) 20 (68) 30 (86) 40 (104) 50 (122) 60 (140)
Target retard amount in CSERS (°CA) 14.5 14.5 11.5 9.5 6.5 1.5 -5.5 -5.5 -5.5 -3.5 -1.5
Engine coolant temperature (°C (°F)) 70 (158) 80 (176) 90 (194) 100 (212) 110 (230)
Target retard amount in CSERS (°CA) 0.5 1.5 1.5 1.5 1.5
MAP 4 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 in CSERS (g/rev) 0.55 9 9 9 9 9 9 9 9
0.6 4 4 4 4 4 4 4 4
0.65 0 0 0 0 0 0 0 0
(°CA)
  Engine coolant temperature (°C (°F))
40 (104) 50 (122) 60 (140) 70 (158) 80 (176) 90 (194) 100 (212) 110 (230)
Target retard amount in CSERS (g/rev) 0.55 9 9 9 8.5 4 4 4 4
0.6 4 4 4 2 1.5 1.5 1.5 1.5
0.65 0 0 0 0 0 0 0 0
(°CA)