If anyone is thinking of actually doing this, heres a great article on why you shouldn't do it
https://blog.comma.ai/safer-control-...al-hw-required if you screw up and the car thinks you are applying a large amount of torque to the wheel it will uncontrollably spin the wheel and you will roll over. Another unsafe option would be to trick the steering rack into thinking the car is going faster as you normally get less assistance the faster you go.
For anyone interested heres a relevant forum post:
https://mirageforum.com/forum/showth...t-help-request
I am only here because I'm mildly interested in the possibility of steering the car though the obd port but i don't think anyones ever looked into it on this forum.