I have been working on converting this T4 from a vr6 to TDI. Currently i am building the wiring harness to be used on the TDI. I am looking for help with the ECU pin out. More specifically, where does pin 43 of the ECM go to? right now it is going to G1-9. From what i have read, it is supposed to be a single wire going to TV13 (vss signal). Where does TV13 get its signal from?