I'm currently putting my VEMS loom together, just wanted to check my plans were ok:
Rather than use the standard 12v switched supply for everything, I'm thinking about putting a relay in to control a fresh 12v line which I'll use for the VEMS and all sensors / injectors etc...
Are there any parts that I should be supplying with a permanent 12v rather than the switched?
I can see nothing that needs a constant feed apart from a single main relay, you could do worse than copy how the VEMS harness has things setup:
(http://www.vems.co.uk/VEMSSchematics/Nissan/VEMSV3LoomRelays.png)
Very useful. Thanks for that Rob.