I don't mean replacing the whole body harness, I mean just running a set of replacement wires to the throttle body. At the dealership we have a selection of wire ends that we can replace into the electrical connectors and just splice in the length of bulk wire that is needed. That way the original harness is still intact and can be reinstalled if the overlay does not have any effect.
Yes- you can post up another question, or if you want I can opt out on this one and another expert may post up. It's more likely to get a response with an additional thread as people don't like to step on a question that already has an answer
Thanks for the update- the throttle body was what was setting the fault, cleaning it and resetting the faults will usually clear it out.
The $15 is simply a transfer to this site, we as techs don't get paid unless you are satisfied and hit the "accept" button on the answer.