Cheers for the info mate, all sorted now
I think I was getting confused to whether the output was a switched ground or a trigger!
So trigger from ECU goes to trigger pin, ground goes to the head and 12v power is switched from the ECU EFI relay from the haltech wiring loom all done for me
I'll get wiring and let you know how it goes.
Also I have heard only K20 coils something is inverted and if you don't invert it on the ECU via the software you can or will blow a coil?
Nik