konstantinkoenig1

Genesis rough running and exhaust leak

Hello, I'm experiencing a concerning issue with my 2014 Hyundai Genesis with a gasoline engine. The check engine light is on, and the engine is running very rough. I also noticed an exhaust leak and a potent exhaust smell. I suspect it might be the lambda sensor; could this cause all of these problems?

A 2014 Hyundai Genesis is experiencing rough running, a check engine light, and an exhaust leak with a strong smell. The initial suspicion is a faulty lambda sensor, which could cause these issues. Another possibility is a cracked exhaust pipe or a particulate filter problem. After diagnostics, the lambda sensor was confirmed defective and replaced, which is expected to resolve the problem.

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4 comment(s)

Hey, I also have a Genesis and had similar symptoms. An exhaust leak and rough running could be a cracked exhaust pipe or even a particulate filter issue. Have you checked those areas?

Thanks for the quick reply! How did you discover the cracked exhaust pipe? Was the exhaust leak visually obvious, or did you notice it another way? I'll check the particulate filter as well. Also, where exactly was the leak in your case?

For me, the strong smell was the giveaway, honestly. But my mechanic found the crack near the exhaust pipe pretty quickly. It's worth getting it checked out at a workshop for sure.

Thanks a lot! It sounds like I need to take it in. After diagnostic, it turned out that the lambda sensor was defective. I had it replaced; the repair cost me 375€. Hopefully, that will resolve the problem. Appreciate the input!

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HYUNDAI

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GENESIS