Audi=No fault code, no idea
Buy a switch and plug it into car and you can download trhe car settings to the switch then plug into a computer and read settings and alter to suit. Plug back into car and upload the new settings. Basically you get a 1-10 option on Fuel/boost/Ignition advance Timing. You can also plug in to car and immobilise if you want to leave the car in a carpark at the airport for example for a couple of weeks. You have 3 custom sets of settings you can pre load into the SPS and upload to car so you can drive to the track on setting 1 change to setting 2 for a track day and reset for drive home. Takes about 20 seconds to change the setting on the car via the switch.
Once you have put your settings into the SPS you dont need the laptop with you to change the car settings. Just select setting via a multi option switch on SPS, plug into car for about 20 seconds untill unit beeps then unplug...all done.
Ibis white Revo S3 and now matching Vivaro LWB HR 2900 :-)
Many people are alive because its illegal to shoot them.