Over the past year and a half I have been trying to get my fiesta rs turbo back on the road. The car was running but the engine needed a rebuild so I pulled it out. The engine was rebuild and fitted, turns over brilliantly and builds oil pressure near enough straight away, but no spark. I have tried 3 different crank sensors,3 different Edis modules, checked/redone various earth's, 2 different engine wiring looms, new coil pack, new leads, new plugs. The fuel pump does prime and the injectors are firing. One thing I have noticed is the rev counter jumps up and down when cranking not sure what this means? The car has a aftermarket alarm which is playing up to be honest but Duno if this is wired so it can affect the spark at all? I know they are countless threads about efi sparking issues but I am literally out of ideas. So just wondered if anyone has any ideas and could help me. Or could recommend any good auto electricians that knows what's what around south Yorkshire.