Hey guy (@curiousB) thanks for your response - greatly appreciated.
The car was running with me applying a little gas. I was doing so to keep the revs up to stop the car stalling. Once it was warm it ran fine. This is why I thought to replace the IAC valve and coolant temp sensor (to stop the cold stalling). I tested the volts, had 12.5v, cranked the terminals up tight still no go. I will try a different battery to eliminate the battery as an issue. ^ Again will check with new battery and ensure terminals are well taken care of. As for the coil pack, when I got back home and turned the car off it was still running with key out of ignition and in hand. Will check contacts. ^^^ Should be okay when it fires again.
I contacted an ECU specialist and he said he would take a look at it for free, so will do that anyway given the offer. Once I get it back I will work through your great suggestions and see how I go. Will also get a recording of it firing if no luck so you can see and hear for yourself
Thanks heaps for your help. Will keep posted