you must only set the idle to 950 rpm once the car is up to temperature, sont try and ajust this as its warming up. it should hold at around 1300 then drop back slowly after a few mins, it will take 15-20 mins to be fully up to temp, then disconnect the cable off the idle control valve and ajust the screw underneath the throttle body to get the revs to 950. when you plug the wire back on the speed should not go up, if it does then i'd d say trhe thtottle position sensor is out or the coolant sensor if fooked.
to set the tps, with the wires connectdm, you need to undo the the throttle body which has it connected and across pins 17 and 19 IIRC, the voltage should be at idle 0.25 to 0.3 volts DC, incidently this will be where the ajustment of the TPS is exactly halfway along its ajustment.