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Home >> Buick >> 2012 >> Regal GS, Standard Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls/Fuel - 2.0L - DTC P0010 To DTC P0336 >> Diagnostic Information and Procedures >> DTC P0178 >> Circuit/System Verification
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Circuit/System Verification

  1. Engine running, verify the scan tool Fuel Composition Sensor parameter is between 50-150 Hz.
  2. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
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