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Home >> Hyundai >> 2021 >> Elantra N Line, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 36 (Engine Control System Diagnosis - 2.0L (Except HEV) (5 Of 6)) >> DTC P2188-00: System Too Rich At Idle (Bank 1) >> DTC Information And Inspection >> DTC Description

DTC Description

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If the lambda controller reaches the maximum or minimum threshold, then feedback control is no longer possible and emissions will be increased. The PCM sets DTC P218800 if no proportional post catalyst fuel trim adaptation occurs for a defined time after the lambda controller has reached its minimum threshold at idle.