Hi Mark Update
Did some more testing today, Seems that fuse 15,is only Live with initial prime (ign swith on) or cranking, or running, I was testing with just ignition on, Came out this Morning & after testing, Fired up and ran first turn of the key, I have had it running for Quite a while with no mishaps.I have wiggled tugged on many connections etc, but it has not cut out once, The only thing i have found was the coil pack connection was not fully clicked in, I am going to take it out this afternoon with my meter and acr to see if i can find what is dropping out.Will let you know,Seems i got it wrong maybe with fuse 15.
Many thanks
Regards john