Just wondering what exactly would a 4age tvis computer do when it is running in diagnostics mode? I mean would it cut timing? run it only in closed or open loop?
Just interested as it could be an option for me running a tvis motor with a td04 or other small turbo?
I can find the diagnostics box on my ae92 levin, but don't know how to do it, how do you run it in diagnostics mode?