I finally got a chance to log some data today on my 93 and here's a weird thing I found.

Went full throttle at 52 MPH, 1600 RPM. (note, reported gear is "D4" before going WOT... The tranny was in OD) at 3250/54, the shown gear becomes D3 then at 4075/55 it becomes D2.
Now, at 5450 RPM/71 MPH it switches gear, then the RPM go down to 3675/76 and the shown gear becomes D3, then the rpms continue to go down a little and immediately the gear shows as D4 at 3525/77 and this continues to 3175/107 where I let go. Then I start cruising around at low speed/rpms and the reported gear always is D4 even at ~875 RPM/18 MPH. At 800/14, it finally switches to D3 for an instant then immediately to D2 at 800/12. (this within less than a second)

If I switch it to DRIVE, same thing happens.
So do I have a dead 3rd or the gear isn't reported correctly? (I did some work on the A4 connector but I'm pretty sure I connected everything right)
Thanks!