What can cause a sudden loss of power in a Vauxhall Insignia?

I've been experiencing a sudden loss of power in my Vauxhall Insignia while driving. The engine seems to stutter and I can hardly accelerate. What could be the cause of this and how can I fix it?

It sounds like you may have a faulty mass air flow sensor. This sensor helps regulate the amount of air going into the engine, and if it malfunctions, it can cause a loss of power. I would recommend getting it checked and replaced if necessary.

Another possible cause could be a clogged fuel filter. If the filter is dirty or clogged, it can restrict the flow of fuel to the engine and cause a loss of power. You should have it checked and replaced if needed.

Have you checked your spark plugs? Worn or faulty spark plugs can also cause a loss of power. I would recommend getting them inspected and replaced if needed.