Hi Lads,

Not been here for a while. Thanks for the suggestions. Was thinking cam or crank sensors myself because there is actually no real constant. Have driven it a lot lately and sometimes it will start after turning on the battery twice others it could be 10 or 15 and it could happen after the car has been sitting for fifteen minutes and other days it will fire straight up after sitting for a few hours.
This all started after the car had been in sitting in a shed for three or four months which led me to believe something in the fuel system had perished. The car was running very rough when I bought it so along with the usual vanos and disa overhauls I think I have found all the vacuum leaks. I haven't tested the fuel pressure which I should have done but don't possess the necessary technology.

I'll get it onto a diagnostic machine before I spend any more time and money on it.