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Home >> GMC >> 2019 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 14 (Engine Controls And Fuel - 2.5L (LCV) - Diagnostic Information And Procedures (P0010-P034B)) >> Diagnostic Information and Procedures >> DTC P0171 or P0172 >> Conditions for Setting the DTC

Conditions for Setting the DTC

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P0171 

The limit to correct a lean air/fuel ratio has been exceeded. - After the running conditions are met - For greater than 3 min

P0172 

The limit to correct a rich air/fuel ratio has been exceeded. - After the running conditions are met - For greater than 3 min