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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls And Fuel - 6.2L - DTC P0300 To DTC P1175 >> DTC P0506 or P0507 >> Conditions for Setting the DTC >> P0506

Conditions for Setting the DTC: P0506

The actual idle speed is approximately 100 RPM lower than the desired idle speed.