I've been helping a friend with a recently-built Duratec 360R. Cylinder 1 won't run. Potted history: When very (very) first fired up, at the pre-IVA check, cylinder 1 didn't run. The mechanic fiddled with the wiring/coils/something (sadly, he now can't remember) and it stumbled into life. The car ran well for over 400 miles. A few days ago, cylinder 1 stopped running. We've tried pretty much everything: there's fuel but no spark. We've swapped plugs, coil packs (COP) and ignition loom. We've checked continuity on each section of loom and at every connector (scrutinised for corrosion - none) and have proven continuity all the way from the ECU connector to the coil pack (it's a brown/white wire for signal and white/purple for 'earth'). We've checked for signal using a Tachostrobe - there's no signal on cylinder 1, but there is on the others, ie the Tachostrobe is working. The only thing we can now think of is the ECU. Has anyone else got experience of this? (We haven't driven the car. Only run it for a few seconds after each component change. Didn't want to damage the cat, but in any case, there was usually no spark plug in the hole, so we know damn' well there's fuel, as it loudly hits us in the face ...)