What could be causing my Audi 80's engine to misfire?

I have been experiencing a noticeable misfire in my Audi 80's engine, particularly when it is under load. I have tried changing the spark plugs and cleaning the fuel injectors, but the issue persists. What else should I check?

One possible cause for engine misfires in Audi 80s is a faulty ignition coil. These coils can wear out over time and cause issues with the spark plugs, leading to misfires. Consider having your mechanic check and replace the ignition coil if needed.