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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 354 (Engine Controls And Fuel - 3.6L (LGX) - DTC P0010 To DTC P0459) >> Diagnostic Information and Procedures >> DTC P0420 or P0430: Catalyst System Low Efficiency >> DTC Descriptor

DTC Descriptor

WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0420

Catalyst System Low Efficiency

DTC P0430

Catalyst System Low Efficiency Bank 2

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