Sorry gents, forgot to mention that I did the ignition leads at the same time as the coil last time..
Then I wonder if Your computer is sending a signal properly. Check GOOGLE and read "How To Test ZETEC ignition". There is more to this. A diode is hooked up to the ignition to insure the coil pack is getting the necessary signal. So if You did this when all fails at least it may give you some information. I have, but not using, a ZETEC EFI. There are at least 2 heat sensors maybe 3. Don't know enough about EFI, but I would find out if I was in your situation.