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Home >> Chevrolet >> 2011 >> Camaro LS, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 3.6L - DTC P0627 Through P2544 >> DTC P2271 or P2273 >> Circuit/System Verification

Circuit/System Verification

  1. Ignition ON, observe the DTC information with a scan tool. Verify that DTC P0137, P0138, P0140, P0157, P0158, or P0160 is not set.
  2. Operate the engine above 1,200 RPM for 30 s, observe the HO2S 2 voltage parameter. The parameter should fluctuate greater and less than the range of 401-519 mV.
  3. 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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