Need some information and how it works on the 11+ lml? from what I have read its ecm controlled? if so what tables and I have one customer who I have tuned that is lacking rail pressure with my tunes and all the rest are fine. he is get a high rail pressure reading when he first starts it everytime and change filter light fairly often. I believe a P0087 rail pressure code. I can find that out for sure. any help thanks.