AiM Data logger installed

The car is back in my possession after a 9month spell ‘away’. I believe I’m only a few weeks away from mapping now so will start to collate over the next weeks some updates with what’s happened of late – starting with the AiM EVO4S. Currently it only has 2 of the 3 sensors I provided running to it, the 3rd is present in the engine bay and goes into the main loom – but for some unknown reason doesn’t appear to be terminated back to the EVO4S. I am also without a wiring diag, and given the 2 sensors that are present are not labelled – I can not currently configure it!
I am trying to get the loom place to of course provide this information and then I will need to look at retuning it to have the 3rd sensor connected back to the EVO4S.