I have a confession to make, I'm not actually a Vauxhall owner. I do own a part of a Vauxhall though and I need some help. I'm tring to get a V6 cosworth engine running on an aftermarket ECU using a vectra V6 coil pack. Is there anyone out there kind enough to let me know the feed designations into the 4 pin plug on the coil pack itself? There should be a common live and 3 switched negs but I need to know which one does which coil bank. Any help is very much appreciated. Thanks.