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Home >> Infiniti >> 2015 >> QX60 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 117 (Engine Control System (DTC/Circuit Diagnosis) (VQ35DE) (Except Hybrid) (2 Of 3)) >> DTC/Circuit Diagnosis >> DTC P050A, P050E: Cold Start Control >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

If DTC P050A, P050E is displayed with other DTC, first perform the trouble diagnosis for other DTC. 

DTC No. CONSULT screen terms
(Trouble diagnosis content)		 DTC detecting condition Possible cause
P050A COLD START CONTROL
(Cold start idle air control system performance)		 ECM does not control engine idle speed properly when engine is started with pre-warming up condition.
  • Lack of intake air volume
  • Fuel injection system
  • ECM
P050E COLD START CONTROL
(Cold start engine exhaust temperature too low)		 The temperature of the catalyst inlet does not rise to the proper temperature when the engine is started with pre-warming up condition.
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