
Turns out it was a broken wire in the plug for the throttle position sensor !
Thing it was the lack of mechanical sympathy at the sprint.
Will just have to see what else it breaks at Cadwell tomorrow now,but I have it planned out,leave at 3.30 am,drive down,thrash it for as long as it lasts (more than 1 lap will be a record for this year) and then sleep on the way home in the AA truck

Saves on a hotel.............sweet

Stu