can TII and NA wiringharnesses be swapped?
 

can i use my NA wiring harness when i do my TII swap?

i was trying to think of any of the plugs that could be totally different and the only thing i could come up with is possibly the plugs that plug into the ECU. i couldnt really come up with anything else that should be different in the wiring other than the different ranges for the turboII parts (afm, pressure sensor, sensors, etc)

does anyone have a definite answer for this?

The TPS wires have to be extended roughly 6" to make it work. Unless you're really good at stretching wires.

You have no lead for the knock sensor. You have to run your own shielded wire from the knock sensor on the engine in to the ecu, use the FSM ecu pinout diagram to find out where it should go, and splice it in there.

The plugs are the same for s5 harnesses inside the car unless they're jspec, in which case you;ll be missing one, but not one to the ecu.