I see speculation that there exists code that detects the test and activates a special mapping mode. I haven't seen that anyone has actually found the code or m

I see speculation that there exists code that detects the test and activates a special mapping mode. I haven't seen that anyone has actually found the code or map. The map ought to be easy to find, VW ECUs appear to have as many freely-available DIY tuning tools as other platforms. I've also seen it speculated that the code to detecting testing is based on determining that the car is on a dyno, and that all manufacturers perform that detection in order to disable the stability control systems. If it were as straight-forward as VW switching to a different map on a dyno I'd have expected that VW tuners would have blown the lid on this thing long ago. Tuners use dynos.