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Home >> Hyundai >> 2018 >> Kona Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 147 (Engine Control System Diagnosis - 1.6L (2 Of 3)) >> DTC P0420-00: Catalyst System Efficiency Below Threshold (Bank 1) >> DTC Information And Inspection >> DTC Description

DTC Description

WARNING: This page is about a different car, the 2021 Hyundai Kona. However, it is still accessible from the selected car via links, so may be relevant.

If the Oxygen storage time for Bank is lower than threshold, the ECM determines that a fault exists and a DTC is stored and MIL (Malfunction Indication Lamp) turns ON.

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