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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1567 (Engine Controls Diagnostic (DTC P0068 To DTC P0174) -- 5.7L) >> Diagnosis >> DTC P0138 or P0158 >> Conditions for Setting the DTC >> Rich Test >> Notes

Rich Test: Notes

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The PCM detects that the affected HO2S voltage parameter is more than 950 mV for 200 seconds.

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