Fixed the high idle issue! Yay!

Apparently there is a “bump switch” on the power steering pump that, when bad, can cause this exact issue. I unplugged it, after a lot of digging (it is buried in there). Started the engine and now it idles around 840RPM, with is ok considering it is just above 40f outside at the moment. Yay! All of that work, which probably had to be done anyway, seems to have paid off. Finally!

Of course, now I need to sort out the power steering pump aand that switch. That can wait, for now....