Thanks for the ideas I'm liking the break down on the way idea my mrs has AA cover so blatantly doable. Thought it migt be the camshaft bu took the litters out and there were no signs of uneven wear or scoring , think it's electical as occasionally. Drops a cylinder or two when left at idle have really tried so many avenues just don. Know wat to do, my good friend is a mechanic and an s2 owner and he can't help either, think it needs an experts touch ! A shame though as I enjoy fixing it in some odd way just can't work it out this time. Got to say this forum is unbelievable big thanks to everyone never had to ask a question really there is always a previous post somewhere!

Anyway I'm rabbiting cheeRS to all!
Steve