Sorry bout that, kinda new. Facing the motor from the radiator, the TSU was on the right (bellow) the upper intake on the lower intake. It uses the same connection as the old intake and is in the same spot (close enough, i don't have the old intake on hand), and has 2 wires, same as the ECT. well, both 2 tone wires similar in colors. The ECT would be on the left side between the valve cover and the intake manifold. You said that the connetion should only have one wire for the TSU?