Need Help, Wiring Fuel Pump Feed From Ecu

[Calsonic14U]

Hi guys building a track car atm. Its a 32 with RB20det. I have no rear wiring harnes as to save money and time i have wired all the lights in myself.

Now the drama i have is that ive wired the fuel pump through an iso switch and a rocket switch on the custom center switch panel i have, which in turn switches a relay in the boot to start pump. But it runs the pump as soon as the rocket switch is turned on and continues to run even with car not running. To stop pump i just have to close the rocket switch.

I require someone to let me know which ecu feeed can i use to switch the relay on in the boot to then run the fuel pump only when the engine is running. I have an ecu pin out list and have tried the original Fuel pump relay wire (no volts at all) and thats it. The rest of the car has standard 32 gtst wiring looms its only the rear half thats different. And standard ECU.