I have been thinking about how I would like to be able to make a modification and see, instantly, how much of a difference it makes. Having a non-OBDII vehicle, ScanguageII is out. MPGuino seems like a viable option, with one exception. I don't have a VSS.
My 1986 model is the first to offer TBI, and its electronic control may have more sensors than it knows what to do with, but it is still fairly basic. It has a cable-driven speedometer.
After a bit of digging, it would seem that the biggest problem with installing an MPGuino is finding the VSS wire. Well, my problem would be completely making a VSS.
How would I go about getting a VSS from another car and hooking it up? It could be a possibility to put a contact on the magnet housing behind the speedometer, but that would connect it to ground, not 12V. who knows, I may take the darned thing apart and put some contacts in there from a distributor
Does anyone have experience making this kind of situation work?