Well I've replaced the Coil Pack Harness all the way to the ECU Plug. When removing the old Harness there was a Wire going down to a Sensor that I couldn't get to so I just snipped it off lol. Now the new Harness is in but I don't know what to do with the Wire. It's a Brown Wire that was brazed into a whole junction of Brown Wires up near the Coil Pack's. It goes down behind the back of the Engine somewhere to a Sensor & the Sensor is a 3 Wire. The other 2 Wires going to it ran the length of the Harness all the way back to the ECU Plug so I didn't have to do anything with them. It's not the Speed Sensor because you get a new 1 on the new Harness & I've plugged that back in already! If this Brown Wire is just a Earth (all Brown's were Brazed together) can I just earth it out on the Car somewhere?