Stretch, looking at post 7 I would think that the WOT switch is connected wrong.
Just to help me get it straight in my mind would you please do the following checks?
With the battery disconnected and the ignition off and everything else connected:

Check resistance between pin 2 and pin 1 with the accelerator at idle position.
Check resistance between pin 2 and pin 3 with the accelerator at idle position.

Check resistance between pin 2 and pin 1 with the accelerator at WOT position.
Check resistance between pin 2 and pin 3 with the accelerator at WOT position.

Check resistance between pin 2 and pin 1 with the accelerator at 1/2 position.
Check resistance between pin 2 and pin 3 with the accelerator at 1/2 position.

It will take longer to read this than it will to do it.

PaulM

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84 500 SEL (307,xxx miles)