Engine bay wiring
 

What wires won't I need on in my bay for my car ? I assume I won't need the carbon canister and the engine temp sensor as I'm using a 3 plug pred ecu ?
It's for a 8v turbo by the way .

Easiest way is to trace each single wire and double check if it's used or not. A total ballache but will tidy things up nicely

yeah i've got a spare loom to play with so i'll get chopping .

I removed (from standard loom/ECU):

3 x aircon wires
3 x immo wires
2 x carbon canister wires
Fuel cut off wires

Does the pred use OEM DLC or its own? if so them 3 wires can go too

do i need to put a resistor between the fuel cut off switch ?

No you can just run another wire/bridge them two. Obviously it means you wont have a fuel cut off however.

yeah i dont think thay will be a problem , thanks tom

i wired my fuel cutoff to a hidden switch so i could shut off the pump as a ghetto immobiliser

I'm not sure what the DLC are ? So I'm not sure

Data link connectors. When you plug in for OBD. Emerald for example you plug straight into the unit the plug inside the car becomes irrelevant for engine stuff. If the pred is the same you can take them out too.

yes the pred has them