The first thing I did today was relocate the charcoal canister to under the car and off the frame rail. It is clearly situated under the EPS pump. Surprisingly accessible all things considered.
Then I took to tracing wires in what was feeling like a vain attempt at finding the other fan exciter wire. For some reason it was buried and directed into the car? I believe it was a wire I repurposed from the C100 (?) connector. Whatever. I snipped it and lengthened it to where it needed to go. Next step was swapping the red 33 and blue 42 (hut! hut! hut!) pins so that I can attempt to use the speed parameters in the tune to turn the pump off above a certain speed. That'll be seasoned to taste.
Then it was time to run 8 gauge wires for the ground and power... only one problem: I ain't got no maxi fuse holders in stock. So I made one out of some maxi-sized female spade connectors I robbed from a fuse block. Should keep the car from burning down if there is a short.
After that was all said and done I decided to test it. 12 volts to the exciter and... nothing. Tap again. Again. And again. Nothing. WTF? Check for voltage, continuity to ground, all good. In a fit of pure rage I just held the power jumper to the exciter wire... I almost peed myself when the pump kicked on. Took me a few more moments to remember it had a 3-5 second delay.
A little more work and we should be able to test it out tomorrow.