I started using 100% processed fryer oil, and also had a TB change. I have access to a VagCom and am wondering Where I should set timing for the TDI. I've searched this and Fred's site but keep getting distracted and cannot find what I need. I know first post isn't an intro, if ya want to know who I am send me a PM. I also needed to post to get access to exclusive content. Great site though, definitely the most useful one I know of regarding TDI's.