Hi all
Thanks for the input on this, the problem is now solved, it was the cam sensor (only one on diesels).

the code ie25 relates to engine speed management, however this code was the only one being picked up by peake tester.

My local independant picked the same code with one analyser but picked up 'cam sensor fault' on another machine.

Replaced cam sensor (£76.00 inc tax from stealer) and 10 minutes of my time.

This has also cleared code ie25 from peake as well as taking away intermittent starting problem.

Thanks again for assistance.