I have been dealing with problems ever since I got my golf GTD 2017 to stage 1. I was happy with the results 225hp 450nm. But engine was not running smooth in lower rpm, fuel consumption went up (from 5l/100km to 6.5l/100km) and regenerations were done every 400km. Because tuner did not now how to solve this problem I decided to put it back to stock. He did it but it only decreased power and all other problem remain the same. After tuner went in to ignore mode 
I started with logging air mass values. I have notice that Air mass, specified value is always 250 [mg/stroke].
Does anyone have an idea what is causing this and if it is a SW problem?
I started with logging air mass values. I have notice that Air mass, specified value is always 250 [mg/stroke]. Does anyone have an idea what is causing this and if it is a SW problem?