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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1997 (Engine Controls And Fuel - 2.4L - DTC P0324 To DTC P1400) >> DTC P0506 or P0507 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
  1. If there are any other DTCs set, diagnose those first.
  2. Using a scan tool compare the desired engine idle speed to the actual engine idle speed.
    • Actual engine idle speed should be no greater than 150 RPM below desired.
    • Actual engine idle speed should be no greater than 100 RPM above desired.
  3. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
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