Pulled off the plug on the warm up reg and cold start injector so I could fix up the wiring cause it was nasty! So nasty that I dont know how it all is meant to be hooked up.

So the cold start injector plug only has 2 wires coming from it, 1 was to earth and the other to nothing. The one on the warm up reg also has 1 earth wire, a wire to the starter motor and another wire that ends in a plug thats been taped up and goes nowhere. So basically, my question is, whats the cold start injector wiring originally meant to be hooked up to?