What are common problems with the Vauxhall Insignia's fuel system?

I have been having issues with my Vauxhall Insignia's fuel system. The car seems to be losing power and I have noticed a decrease in fuel efficiency. What could be causing these issues and what should I do to fix it?

It is possible that your fuel filter is clogged, which can cause a decrease in power and fuel efficiency. I would suggest getting it replaced.

Another common issue with the Vauxhall Insignia's fuel system is a faulty fuel pump. This can also cause a loss of power and decreased fuel efficiency. I would recommend having it checked and replaced if necessary.

It could also be a problem with the fuel injectors. If they are dirty or clogged, the fuel system will not be able to properly deliver fuel to the engine. I would suggest getting them cleaned or replaced.

In some cases, there may be an issue with the fuel pressure regulator. This can cause the fuel system to not function properly, resulting in a loss of power and fuel efficiency. I would advise having it checked and replaced if necessary.

It is always a good idea to regularly inspect and maintain your fuel system to prevent these issues from occurring. Make sure to check for any leaks or other signs of damage.