I am brand new to this site and am looking to expand my knowledge on tuning these ALH TDI 90hp cars. Personally, I have a 2002 New Beetle. If anyone can point me in the direction of where I should start with all of this, it would be much appreciated. I am currently working with VAGEDCsuite and it seems pretty straight forward but a couple of the maps such as Start of Injection timing and the N75 percentage map has me just a tad confused.

Any and all help would be amazing,

Christian