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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 P0131 or P0151 >> Conditions for Setting the DTC >> Lean Test:

Lean 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 200 mV for 165 seconds.

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