LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 2006 >> Impala SS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 5.3L - DTC P0016 To DTC P0135 >> DTC P0131 >> Conditions for Setting the DTC >> Lean Test
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Lean Test

The ECM detects that the affected HO2S voltage parameter is less than 200 mV for 165 seconds.