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Home >> Hyundai >> 1997 >> Sonata L4-2.0L >> Repair and Diagnosis >> A L L Diagnostic Trouble Codes ( DTC ) >> Testing and Inspection >> P Code Charts >> P0420

P0420

P0420 Catalyst System efficiency below threshold(bank 1)

NOTE: Hyundai Motor Corporation has not provided any diagnostic information for this DTC for this model year.

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