ECU Wiring
 

I want to fit a simple by-pass switch into my WRX ra track car, so it won't start even if you have the keys, without flicking the switch (or switches - got a couple in mind)

So what I want to know, if I wire it direct to the harness at the ECU, what should I connect it to?

Ignition circuit (no ignition - maybe a bit obvious that one)

Starter (igntion will come on but won't turn the starter - again maybe a bit obvious)

Fuel Pump Relay (turn over but won't fire up)

Crank sensor (turns but wont fire)
Ignition coil

any help?

Anymore ideas anyone?