Lumenition C400 probems A bit of a long story so please bear with me. 2L blacktop Zetec on Jenvey throttle bodies A couple of years ago I was setting off to the classic Le Mans. The car had been running fine. I put the battery on trickle charge over night and when I set off in the morning it ran like a sick dog. hesitating and missing all the way to Newhaven. When I finally arrived it cut out and refused to start. I had a spare set of plugs which I changed and noticed the crank sensor wire was next ti the live off the battery. I moved the cable away and it started and ran like a watch all the way down and back. When I returned to the UK the car broke down 20 miles off the ferry. Turned out to be a dead cell in the battery. so I purchased a new battery and alternator as it had stopped charging. After a new battery and alternator I can't get the car to run cleanly, it hesitates and misses and will not tick over. It smokes with a whitish plume and the plugs are sooty. I have replaced the following; Plugs, coil pack, leads, air temp and water temp senders crank sensor as well as draining the fuel. Any suggestions as where to look next would be appreciated. I have spoken to Steve at road and race who originally mapped the car ( it ran like a dream) and he has said that the ECU would either work or not. It must be something simple but it is driving me round the bend. The ECU is from 1999 so 20 years old but has always run fine. Regards, Jon