Thanks the END for your advice and quick reply, Funny you say that, because when I read the codes today and cleared them by the way :-( one of them said Air Mass too small , does that make any sense to you? although I cleared it and then took it for a drive the error didn't come back. I did take the Air Mass off last week and cleaned it and popped it back on. Hopefully all that makes sense?
Cheers again - Richard