1. I would like to back up the original tune to another harddrive, where do I find the file?
2. Around 50km after I installed VT I had the code P0401 (Exhaust Gas Recirculation "A" Flow Insufficient Detected). Has that anything to do with VT or is this a mere coincidence since I blocked the EGR tube around 750km ago?
I added two logs, if anyone would like to have a look and tell me if my car is healthy, I would appreciate

Thanks