hey guys i bought the ISSPRO EV2 and in the directions it says to connect to the fuel pressure regulator test port,and also i might need to buy an adapter to make it fit. anyway i could use some insight on the cause i dont know where the test port is and not sure about the adapter. is there another place to hook up the fuel pressure gauge with out needing to buy an adapter? i have a 01 H. O P. S pictures would be greatly appreciated.