How to troubleshoot engine issues in a Ford Mondeo?

I recently bought a used Ford Mondeo, and it's been giving me trouble with the engine. It seems to be misfiring and I'm not sure what the cause could be. Any tips on how to troubleshoot this issue?

First, check your spark plugs and ignition coils. They are a common culprit for engine misfires in Ford Mondeos. If those are fine, then it could be a fuel system problem. Try replacing the fuel filter and see if that helps.

Have you checked the battery? A weak battery can cause all sorts of engine issues. Also, make sure your air filter is clean and your oil level is good. These are simple maintenance tasks that can greatly impact engine performance.

I had a similar issue with my Ford Mondeo. Turned out to be a faulty oxygen sensor. I would recommend getting your car scanned for any error codes and addressing them accordingly.