Why is my check engine light on in a 2015 Hyundai Elantra sport?

Asked by Jun 27, 2017 at 01:17 PM about the 2015 Hyundai Elantra Sport

Question type: General

All maintenance is performed on time, and I only use premium unleaded fuel.

2 Answers

Usually it's an oxygen sensor go to a local advance auto store and they will plug in the computer code reader and do a diagnostic test for free

55,235

If it is still under factory warranty take it to the dealership for service. Saying it is usually an oxygen sensor is very misleading. The light can be caused by any number of things.

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