Fuel injector pump rear wires

[n5yntx]

I recently bought a 1987 Mercedes 300d Turbo, and I have been doing a lot of work to it. Today I was working on the a/c system and notice a connector hanging loose. I traced it back to the rear top of the injector pump. There are only two wires.
I cannot for the life of me figure out where the connector goes into. The number 0125450728 is stamped on top of the connector.
Any help would be appreciated.

[lsmalley]

if its stamped on top of the connector, thats probably just the connector part number. a picture would help.

[n5yntx]

I finally figured out where the cable hooked into. It was to the part directly behind the fuel injector pump. It appeared to be the throttle assembly.