I used to be a member of this forum many years ago when I owned a succession of Sierras. I haven't owned a Ford in a while but these days my son is driving a 2006 Fiesta 1.25.

It's a belting little car but it appears to have a slight oil leak. I had a quick look underneath and it appears to be coming from a sensor low down on the front of the engine on the right hand side as you look at it.

My immediate thought was oil pressure sender but there appear to be two wires going to it and every online parts guide shows a sender with a single wire. I can find nothing clear online to show a) where the oil pressure sender is or b) what the offending sensor/sender is if not the oil one.

Any help gratefully received.