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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1035 (Engine Controls Diagnosis - 4.3L (DTCS P0016-P0158)) >> Diagnosis >> DTC P0137 or P0157 >> Conditions for Setting the DTC >> Power Enrichment Test

Power Enrichment Test

WARNING: This page is about a different car, the 2004 GMC Sierra and 2004 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

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

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