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Home >> Hyundai >> 2021 >> Elantra N Line, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 34 (Engine Control System Diagnosis - 2.0L (Except HEV) (3 Of 6)) >> DTC P0303-00: Cylinder 3-Misfire Detected >> DTC Information And Inspection >> DTC Description

DTC Description

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If the PCM detects that engine speed variation indicates a misfire sufficient to cause three-way catalyst converter damage or emissions level to exceed standard value, the PCM sets DTC P030300. If the misfire rate is high enough to damage the catalyst, the MIL will flash to alert the vehicle operator.

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