Engine is not getting spark after applying 12 volts to sensor while running

I don't hace full internet acces. With the key turned on, the car switches on and turns over but the engine light stays off and that is the reason for no spark. I have triple checked almost everything on the car, when you turn the key, the fuel pump goes and basically everything is fine but there is no spark. There are 3 wires running from the airflow sensor and one of them only had 5.88 volts and out of my own stupidity, I gave it 12volts while the engine was running, it instantly diedThe old ECT was faulty so it did not pick up the airflow sensor, thats why I fiddled with it, I did buy another one after searching forever, fitted it and that is where I am now. No engine light on dash with the key turned on, so no spark. The immobilizer is professionally disabled as toyota instruckted. I hope I have fully described my problem clearly, thanks Christo