How to troubleshoot low power in Audi 80 engine?

I noticed my Audi 80 has been struggling to accelerate and has a lack of power. What could be causing this and how can I troubleshoot it?

First, check the air filter for any clogs or debris. A dirty air filter restricts air flow and can cause a decrease in engine power. Next, check the fuel filter for any blockages. If both of those are fine, it could be an issue with the fuel injectors or spark plugs. I suggest getting a diagnostic test done at a reputable mechanic to pinpoint the exact cause.

If your Audi 80 is equipped with a turbocharger, the low power could be due to a malfunction in the turbo. Check for any leaks or damage to the turbocharger and have it repaired or replaced if necessary. You may also want to check the boost pressure sensor and intercooler for any issues.

Another possibility is a faulty mass air flow sensor. This sensor measures the amount of air entering the engine and if it is not working properly, it can cause a decrease in engine power. You can try cleaning the sensor with mass air flow sensor cleaner, but if that doesn't help, it may need to be replaced.