Lewey after having a chat with Apexi with regards to wiring in the RPM signal, they have come back to me and written this...
"For the RPM signal it varies by application, however, for the most part you can take the signal off of the Crank Sensor signal, should be a 0-5V reference signal"
Do you know how does this fit in with the Uno Turbo ECU, and is it easily accessible to splice?
I'm really grateful for the time your putting into this mate, if we can crack this together its got to be worth a few thank you:worship:s