Simon,
Best to hook up your OBD 2 port to a code reader mate and see what fault codes are stored.
There are various issues that may be causing this.
Has your box of goodies arrived yet?
Alex.
Yea that was what i was thinking. i dont know what the previous owner have been using the car for, but i guess racing
Nope.. no goodies yet, but we are buried in snow at the moment so delivery is a bit slow.. hoping for tomorrow