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Home >> Chevrolet >> 2006 >> Epica LTZ >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 2.0L (L34 GMDAT) - DTC P0137 To DTC P1171 >> DTC P1167 >> Circuit/System Verification

Circuit/System Verification

  1. With the engine running, observe the heated oxygen sensor 1 (HO2S) voltage parameter. Verify that the HO2S 1 parameter is between 350-550 mV.
  2. If the vehicle passes the Circuit/System Verification Test, then operate the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that are captured in the FreezeFrame/Failure Records List.
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