If the engine is out....
 

If the engine is out how hard is it to run a new wiring harness i have a na but im trying to go turbo if get the engine out how hard is it to locate the wiring harness unplug it install the turbo wiring harness and the new ecu?

When you pull the motor out unplug the connectors to the ecu behind the glovebox. Push them through into the engine bay and pull the motor.

When you go to install the new turbo motor make all the connections and leave it on top of the motor.

Once the motors in feed the wires through the hole, install your new ecu right where the old one was and plug it in.

So there really isnt that much more work swaping out a 7mge for another 7mge. i mean the wireing harness and ecu but they dont seem like they would take that much time. Maybe an extra hour?