I have only Hexprog.
Why power class changing when tune pflash?
And what does power class mean? I would like to understand that.
Check Ex EEPROM. If the same before and after then don't worry about power class. This also can be a 'tuner code'.
The diagnosis monitors the correct programming of the DME data stand
The fault is detected when the programming has not been made with an authorized data stand (Chiptuning)
Possible cause of fault:
- DME data stand manipulated
No negative effect, you can drive forever. I'll see if I can fix for you, when I find some time.