Since its hard to find out online I will share it here. If you use a greddy ebc, you need to tap into the fpr line to go to the back of the unit. Seems this is barely mentioned online. I found it on the gt4oc.
http://webcache.googleusercontent.com/s ... clnk&gl=us
I installed the water temp sensor today, the boost solenoid, the heat shield, antifreeze etc.... I also test fit my lip and while I was there I found a scrape under my bumper. I have a feeling the damn alignment shop did it, but there is not way to prove it.
Anyhow, here is the engine bay as of now. Not the prettiest, but it does what it needs to do. I will adjust the boost tomorrow once I read up how to use this controller.