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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 >> Diagnostic Method
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Diagnostic Method

JUDGMENT VALUE SPECIFICATION

Malfunction Criteria Threshold Value DTC
Actual engine speed - Target engine speed Less than -230rpm P050A

Time needed for diagnosis:  7000ms

Malfunction indicator light illumination:  Illuminates when malfunction occurs in 2 continuous driving cycles.

JUDGMENT VALUE SPECIFICATION

Malfunction Criteria Threshold Value DTC
Final ignition timing - ignition timing during CSERS*
*:
  • CSERS (Cold Start Emission Reduction Strategy)
  • Intermediate ignition timing = Base ignition timing - Retard amount
More than value of Map5 P050B
MAP 5 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) 40 (104) 50 (122) 60 (140)
Threshold value (CVT model) (°CA) 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5
Threshold value (MT model) (°CA) 7 7 7 7 7 7 7 7 7 7 7

Time needed for diagnosis:  7000ms

Malfunction indicator light illumination:  Illuminates when malfunction occurs in 2 continuous driving cycles.