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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 931 (Engine Controls And Fuel - 6.6L (LMM) - DTC P0016 To DTC P0299) >> DTC P0101 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2007 GMC Sierra, 2007 GMC Cab & Chassis Sierra, 2007 Chevrolet Silverado, and 2007 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify that DTCs P0047, P0048, P0102, P0103, P0403, or P0405 are not set.
  2. Verify that restrictions do not exist in the exhaust system. Refer to Restricted Exhaust .
  3. Verify that leaks do not exist in the exhaust system. Refer to Exhaust Leakage .
  4. Engine operating at idle; observe the scan tool MAF Sensor parameter. The reading should be between 2,300-4,400 HZ depending on the ECT temperature.
  5. A WOT acceleration from a stop should cause the MAF Sensor parameter on the scan tool to increase rapidly. This increase should be from 16-38 g/s at idle to greater than 400 g/s at the time of the 1-2 shift.
  6. 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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