right, had another look today. Don't think its an immobiliser issue now. Definitely getting fuel, but not even a sign of a spark. All connections are okay, checked and double checked and triple checked... It appears that the wiring might be different. I've put a p reg engine into a t reg car, it would appear the only thing left to do is to swap the loom, this looks a bit of a nightmare. Am i missing something obvious?? Anybody got any insight on changing the loom..