i think this puts the mystery plug to rest...
the 2 plugs on top of the tranny are plugged in by the mystery plug, while the speed sensor is a little farther down.
could it be wiring or just a bad speed sensor all together with the 2 codes being thrown for it...
i was driving it a little earlier and seemed like under a little harder acceleration the CEL was flashing, haven't seen that before with it.
would ask if the IACV code could cause this mess but i wouldn't figure that to cause the no speedo.
checked out the pins on the VSS yesterday and they looked straight and clean, no debris, heard in snap in.
sorry still a newb at these things