Normally when someone posts a new topic I will get an email and then pretty much as soon as I have time I will have a look and response. In the case of the V8 engine ECU sync I was thinking about what to say and got distracted.
Because I had already read it it didn't show up as an unread thread, and the email had been read as well.
It's just a combination of getting older with a poor memory, being busy, not exactly knowing the answer straight away and getting distracted.
I try my best but like anyone occasionally make mistakes. Apologies.