Idle potentiometer
 

Ok, so I'm doing repairs on a W202 C220 (M111,961) '95. Rats severely damaged the wiring in the engine. I fitted and connected a new wiring harness, and repaired most of the damage. There is one part that I cannot get information on, the fuel pressure idle mixture potentiometer. The rats chewed off all 3 wires. It wouldn't have been a problem to solder the wires, but 2 of the 3 wires are both brown/white. I've traced one of the br/wt wires to the ECU, the other one branches off, so I can't just go ahead and solder. Does anyone know or have a diagram showing where pins 1, 2 and 3 terminate?
https://cimg1.ibsrv.net/gimg/www.mbw...93f1cf3040.jpg
https://cimg4.ibsrv.net/gimg/www.mbw...ddaac86410.jpg

PS: WIS, EPC and Haynes Manuals does not show any detail about this part.