Craig,
Not sure that you have "verified" that the w/h was replaced. IMO, you MUST know that it has before you start swapping ECUs, otherwise you're wasting time and money!
In my experience, re-wiring the ETAs has NOT been succesful but for only a few cases. If the Ref Pot or the "current" yoke has failed, re-wiring will do nothing to solve your problem.
Get the w/h verified or replaced if not new, then have the ETAs checked . . Menu#24 gives some places that can check them. My personal preference is Beckmann Industries. Menu#24 is
here