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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 89 (Engine Controls And Fuel - 3.6L (LF4 LGX) - DTC P0121 LF4 To DTC P0685 LF4) >> Diagnostic Information and Procedures >> DTC P050D: Cold Start Rough Idle >> Repair Verification

Repair Verification

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

Repair Verification requires cold start.

  1. Ignition ON, engine OFF, clear the DTCs with a scan tool.
  2. Start the engine.
  3. Verify DTC P050D does not reset.
    • If DTC sets 

      Refer to Circuit/System Testing.

    • If DTC does not set 
  4. All OK.
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