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Home >> Chevrolet >> 2004 >> Avalanche 2500 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 14 (Engine Control System - 4.8L, 5.3L & 6.0L (DTC P0068 To DTC P0140 Or P0160)) >> Diagnostic Information and Procedures >> DTC P0137 or P0157 >> Conditions for Setting the DTC >> Power Enrichment Test

Power Enrichment Test

WARNING: This page is about a different variant/trim than selected.

The PCM detects that the affected HO2S voltage parameter is less than 420 mV for 10 seconds.

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