What could cause my Vauxhall Insignia to have reduced power?

I have been experiencing a decrease in power while driving my Vauxhall Insignia. It feels like the engine is struggling and I am not able to accelerate as quickly as before. What could be the potential causes for this issue?

This could be due to several factors such as a clogged air filter, a faulty oxygen sensor, or a malfunctioning fuel injector. I suggest taking your car to a trusted mechanic for a diagnostic test to pinpoint the exact cause.

Have you checked your spark plugs? If they are worn out or dirty, it could affect the performance of your car. I recommend getting them replaced if needed.

Another possible cause could be a problem with the ignition system. It is important to address this issue as it could lead to further damage if left untreated. I suggest consulting with a mechanic as soon as possible.