.... you seem to have a massive wealth of knowledge you are keen to pool into the community I for one am very appreciative of the extra knowledge thankyou
Well... I'm very stubborn and when my 2L TDI had issues about 5 years ago, everyone and everything I could find on forums about my problem was along the lines of "you need to replace the DPF". I refused to accept this, as my car was functioning perfectly in terms of performance otherwise, and my mechanical engineering and IT backgrounds were telling me that this would be impossible IF THE DPF WAS CLOGGED beyond repaid. Based on my practical mechanical and technology skills and comprehension of reality, I started reading every SSP program I could find on the engine\systems in order to find a solution. Eventually I did, and as a result I basically told the ECU that "I've replaced the DPF", to stop being a nanny, and to allow my emergency regen to take place.
Everyone at the time told me that I would burn my vehicle down as a result, and I will admit that I had concerns about it, but being so stubborn, I actually performed the emergency regen regardless, while driving down an empty freeway at illegal speeds, with a fire extinguisher by my side, while being OK with the idea of potentially having to pull over and watch my car burn to ash on the side of the road.
Other than that, I've had a few VWs in my past, raced\modified both cars\trucks and motorcycles, and have always done my own wrenching as much as possible..... plus been around a few forums and have had plenty of exposure to others who have provided both good and bad knowledge....
No one knows it all, but collectively, we know a lot.
Anyways, I just recently picked up the Touareg after the dieselgate, especially because I am very familiar with all that fiasco from still owning my Jetta and having gone through it all, and as a result, now I'm following the same "going to school approach" on the 3L system which is very similar to the 2L system.....
Why do I feel like I just had a job interview? LOL