Troubleshooting Vauxhall Vivaro Engine Performance

I have noticed a decrease in performance in my Vauxhall Vivaro engine. What could be causing this issue? Any tips on how to improve engine performance?

It is possible that the spark plugs may need to be replaced. I recommend checking the spark plugs and replacing them if necessary. Also, make sure to regularly change the air filter for optimal engine performance.

Another factor that could be affecting engine performance is the fuel filter. If it is clogged, it can restrict the flow of fuel to the engine. Consider replacing the fuel filter regularly to maintain good engine performance.

If the engine performance issue persists, it could be due to a faulty oxygen sensor. This sensor measures the amount of oxygen in the exhaust and helps regulate the fuel-to-air ratio. Have a mechanic check the sensor and replace it if needed.