Do I have the correct sensor (see image below with red arrow). I connects to the return fuel line. I'm attempting the fuel temp resistance mod. If I do have the correct sensor does anyone know which wire I need to cut into to add my resistance? The original mod post (http://forums.tdiclub.com/showthread.php?t=152468&highlight=coolant+temp+mod+kerma) suggested a yellow/blue wire from a 7 pin connector. I only have two wires (purple and yellow/black).