I started to swap out pumps today that turned out to be a huge pain in my butt. Any who I just test drove the car and now it's breaking up pretty bad past 4g's. I looked at the diagram(sp?) that was sent with the pump and noticed it had a line that looked to be pluged. There are two lines actually on the assembly that has one pluged and the other unplugged (return line). I don't remember pluging the other line, could this cause my car to break up pretty bad???