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Equus Jerking Acceleration

I'm having trouble with my 2015 Hyundai Equus with a gasoline engine. The check engine light comes on and off, and it jerks when I accelerate. Plus, there's a whistling and hissing sound from the engine when I accelerate. It sometimes stalls when idling, and I'm getting worse gas mileage and less power. I think it might be the boost pressure sensor. I checked it and the cable/plug, and I think that might be the problem. Anyone else have this issue?

A 2015 Hyundai Equus was experiencing issues with jerking acceleration, a fluctuating check engine light, whistling and hissing sounds, stalling when idling, reduced gas mileage, and power loss. The suspected cause was a faulty boost pressure sensor or its connection. After checking the sensor and cable, it was confirmed that the cable connection was the problem. Repairing the connection resolved the issues.

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4 comment(s)

Sounds familiar. I had something similar happen with my Equus. Is it worse when the engine is cold?

Thanks for the quick reply. Yes, it seems worse when the engine is cold. Can you tell me more about what happened with yours and how you fixed it?

Yeah, mine was doing the same thing, especially when cold. It was the boost sensor connection. Best bet is to get it checked at a workshop.

Thanks for the advice. I took it to a workshop, and they said the cable connection to the boost pressure sensor was bad. The repair was 95€, including parts and labor. It fixed the problem. Thanks again!

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HYUNDAI

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EQUUS