Back on topic
Mate had one of these and that was a pain in the
first I'd check immobilizer althou this was never the problem on his
on my mates one it turned out to be a sensor that tells the position of the crank or cams not sure which, think it may have been crank as it was positioned near the bottom of the engine
apparently if this sensor dosen't work as it should then you will get no spark etc
He had many problems with his in the end changed all the coil pack thingys and leads
Gaz