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Home >> Saturn >> 2008 >> Sky Red Line, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 2.0L - DTC P0010 To DTC P0299 >> DTC P0101 >> Circuit/System Verification
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Circuit/System Verification

  1. Verify that restrictions do not exist in the exhaust system. Refer to Restricted Exhaust .
  2. Verify that an exhaust leak does not exist, including the mating surface area between the turbocharger and the exhaust manifold.
  3. Ignition OFF for 90 seconds, determine the current vehicle testing altitude.
  4. Ignition ON, engine OFF, observe the scan tool BARO parameter, Boost Pressure Sensor parameter, and MAP Sensor parameter. Compare the parameters to the Altitude Versus Barometric Pressure table. The parameters should be within the specified range indicated in the table.
  5. Engine operating at idle, observe the scan tool MAF Sensor parameter. The reading should be between 1,700-3,200 Hz.
  6. A wide open throttle (WOT) acceleration from a stop should cause the MAF sensor parameter on the scan tool to increase rapidly. This increase should be from 2-6 g/s at idle to greater than 200 g/s at the time of the 1-2 shift.
  7. 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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