SRowells Black Rallye

[Niall]

May be a silly question but the coil pack was bolted down to a clean surface right? You have 3 wires. a constant 12v, neg switch for coil 1 and neg switch for coil 2 but the coil pack needs to be earthed. If you look at the bolt holes, youll see under a few of them there is a metal track

Ah that's interesting...  So testing for a spark with the coilpack out and the spark plug touching the block wouldn't work anyway?

Not unless you're using that 4th pin to earth on the plug which i believe the 1.8/xsi loom does as standard albeit with a noise isolator inline.