Not sure about the 1, 2, 3 order however the wires on the plug to the TPS are....

Red wire (ecu pin 30) is the 5 volt feed to the TPS, the Black wire with Red stripe (ecu Pin 17) is the signal (Centre pin on TPS) back into the ECU and the Brown with Green stripe (ecu Pin 11) is the Earth supply to the TPS.