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Home >> Chevrolet >> 2018 >> Suburban 3500 HD LT >> Repair and Diagnosis >> External Pages >> Different car >> Section 9 (Engine Controls And Fuel - 5.3L (L83) Or 6.2L (L86) - DTC P0443 To DTC P3452 And Diagnostic Information And Procedures) >> Diagnostic Information And Procedures >> DTC P050D: Cold Start Rough Idle >> Diagnostic Aids

Diagnostic Aids

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This DTC has a higher priority over any misfire DTC. Diagnose the fuel system, not the ignition system.

Verify the condition did not cause the DTC to set:

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