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Home >> Chevrolet >> 2008 >> Impala Police >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 3.9L - DTC P0010 To DTC P0336 >> DTC P0069 >> Circuit/System Verification
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Circuit/System Verification

  1. Verify the following DTCs are not set: P0106, P0107, P0108, P0641, P0651, P2227, P2228, or P2229.
  2. Ignition ON, Engine OFF, determine the altitude for your area. Refer to TEMPERATURE VERSUS RESISTANCE . Observe the MAP Sensor and BARO parameters. The readings should be within 5 kPa of each other and the Altitude Versus Barometric Pressure table.
  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.