Where do these hook up to?

I have them installed already, so I know where they are located, but where does the wiring from the sensor terminals hook to? My car was stolen and really was messed with under the hood. Ive replaced: igniter, vavlve cover gasket and tube seals, timing belt, cam shaft seal, thermostat, coolant temp sensor, temp sending unit, cold start injector piggytail, spark plugs, wires, dist cap, rotor, radiator, and radiator hose. Finally it runs but 1st gear is weird- it is as if you are starting out in 2nd when you are in 1st. You have to get a run at a hill and it lags and barely goes in 1st, but shifting in the other gears seems fine. Thought it was the clutch and bought one, but a mechanic friend said its power related. So, with the sensors, vacuum hoses etc needing hooked up and routed properly, thats what ive been concentrating on, hoping it will eliminate the problem. Also, the idle revs up and down constantly. Any ideas?