[400TT]

Due to the length of the main loom your ECU will end up behind the dash either on passenger side or drivers side. See what suits best. I expect you will want to run the loom straight back off the rear of the engine and into the cockpit.

Best result is to tuck the loom section that connects to injectors & coil packs into the recess on each side of the intake manifold under the fuel rails.

Don't be afraid to untape it to re-organise it for fitment.

Connector wise you will be fine, they are all labelled.

Like any wiring loom they can be a little daunting when you first look at them, but a bit of time spent laying them out and they start to fall into place.