Oil Temp sensor wire

Hi folks I had a search of the forums with no joy. I had a look under my Coupe a few days ago at the oil temp sensor, as its not reading on the dash gauge.

Turns out the sensor is there but the wire for it is missing! Does anyone know where the other end of the wire (ecu side) is located as I want to replace it and get the gauge working again!

Thanks
Vinny