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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 103 (Engine Controls Self-Diagnostics - 2.2L) >> Diagnostic Tests >> DTC P0130: Ho2S Circuit - Sensor 1 (DOHC) >> Test Description

Test Description

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The number below refer to the step number on the diagnostic procedure.

  1. 2

    When the system is operating correctly, the HO2S 1 voltage should toggle at greater than and less than the specified values.

  2. 4

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

  3. 5

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

  4. 8

    The conditions listed in this step may cause this DTC to set. Any source of contamination must be removed before replacing the HO2S 1.

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