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Home >> Oldsmobile >> 2002 >> Bravada AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Self-Diagnostics - 4.2L >> Diagnostic Tests >> DTC P0134: Ho2S Circuit - Insufficient Activity - Sensor 1 >> Test Description

Test Description

The numbers below refer to the step numbers on the diagnostic procedures.

  1. 2

    When the system is operating correctly, the HO2S voltage should toggle above and below the specified values.
  2. 5

    The specified value is what is measured on a correctly operating system.
  3. 6

    The specified value is what is measured on a correctly operating system.