2017 Volkswagen Jetta 1.4 STI replace a fuel injector

[@MaximusHexon]

I also have this problem and the mileage is only 90,000km. A drop in power(particularly in high revs with the accelerator held in the floor for longer) and higher combustion. AFR 10.2 instead of tuned 12. What was the mileage on your car? Now the question is whether the injectors are just damaged or dirty and just need to be cleaned maybe? I'm unlikely to use half-measures and will replace the injectors with new ones, especially as they are not expensive. The computer does not show any errors.