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Home >> GMC >> 2016 >> Terrain SL, Gas >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine Controls And Fuel - 3.6L (LFX) - DTC P0351 To P2635 And Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P050D: Cold Start Rough Idle >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.
NOTE:

Circuit/System Testing requires cold start. Do not start vehicle prior to connecting scan tool and preparing to evaluate the condition during engine crank.

  1. Start the engine and observe the Cylinder 1-6 Current Misfire Counters during the first 500 engine cycles. The Cylinder 1-6 Current Misfire Counters should not be incrementing.
    • If the misfire counters are incrementing on one or more cylinders 
    1. Ignition OFF.
    2. Verify that the following conditions do not exist:
    • If the misfire counters are not incrementing 
  2. All OK..