Do you have the ability to get a readout of your sensors? I added a racelogic unit, so the side bonus isI can get a nice little graph of the wheel sensors. The short story is clean your sensors. I couldn't believe how out of sinc the wheels sensors could be without throwing a code. Anyway I cleaned up 3 and replaced  one, because of  damaged  wires and now it works good as new

Anecdotally, I'm pretty certain I've experienced something similar to "ice mode" when I still had the 94 ABS. It almost acted like a stability control and sent the car straight in a turn while trail braking.

I went on a mission to find a better system since. The S2000 setup has been good to me so far.

Me as well with a 93, scared the hell out of me almost ice moded backward into a tire wall. I replaced it with a rx7 '99 system, had to re-assign wires and ad 3 if I remember but works great now. 

It is not that there is an ice mode programmed in, it is that in the 93-94 abs if the system senses that one wheel is locked up it takes brake pressure from ALL wheels till the stuck wheel starts spinning. IF your "stuck" wheel doesn't start spinning you got no brakes. At some point, this will throw an abs code but not in time.

Didnt read the whole thread  but  my 2 cents if you get a McLoid dual, do not get a street one with the asbestos friction get the carbon one,any oil the former and the clutch disintegrates


And 2 if you are using a light flywheel get your tuner to adjust  the "FOLLOW" or you will stall out at decell  and coming to a stop as the ecu is expecting more mass to keep the engine spinning

been there done that, though much much slower speed. This is the  reason I switched over to 99 abs

start by cleaning the sensors and senor mounts

I can tell you the the mazda sensors will play nice with abs and racelogic tc at the same time no problem.

if you guys go for an aluminum flywheel , you might need a retune to your ecu , I needed to have my "follow" adjusted. When I installed my frezelli flywheel
* I M NOT KNOWLEDGEABLE ABOUT TUNING STUFF AT ALL

Cobranut, I have gone though 3 switches that only worked the first time i turned on the ac. I just run with it jumped. I am paying attention for an answer.