Mokka engine running roughly

I own a 2018 Vauxhall Mokka with a gasoline engine and I've been having some issues. The engine runs roughly, and the check engine light comes on sometimes. It also jerks during acceleration, and engine power is noticeably reduced. The car has 57794 km on it. Could this be a combustion misfire?

4 comment(s)

That sounds familiar. I had similar symptoms with my old Renault Megane: rough idle, check engine light, and poor throttle response. Have you checked the ignition coils? A faulty coil can cause combustion misfires.

Thanks for the advice. I haven't checked the ignition coils yet. How would I test them?

While you could test them yourself, given the symptoms and the potential complexity, it might be best to take it to a workshop for a proper diagnosis. In my case, the garage identified a defective injector.

Thanks for the insight. I took it to a workshop, and you were spot on. The diagnosis confirmed a defective injection valve. The repair cost 515€, but the car runs smoothly again.

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