Thanks for your input Glyn.

The solus does not have that facility but it gave me the push in the right direction. I connected solus and recorded a movie to try and find out what else was happening at the time the fault occured.I got the results I expected to see at the cut off moment but also noticed the revs went to zero.I tried to drive through this and it went into limp mode which was the first time this had happened.Another code appeared. p0321 speed sensor. I then scoped the crank sensor(With difficulty)and the waveform disappeared at high revs. Replaced and all is well. I will change the follower as this is an accident waiting to happen.