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Home › GMC › 2003 › Envoy RWD › Repair and Diagnosis › Engine Performance › System › Engine Control System - Self-Diagnostics - 4.2L › Diagnostic Tests › DTC P1171: Fuel System Lean During Acceleration › Conditions For Setting DTC

Conditions For Setting DTC

PCM detects that the HO2S 1 parameter is less than 300 mV for 5 seconds.

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