The car is a running car and has been in occasional use. I can not explain it any more than what I described.
One thing I think I noticed (but would have check to be100 % sure) was before the fuse was replaced, the flashing led on the pscan box only came on with the ignition on, I am pretty sure after the fuse replacement it came on when it was plugged in without the ignition on. Although I am not 100% sure as I said.
I am away a couple of weeks now, so could check that when I get back to confirm if it helps anybody