Quick PCM idle re-learn procedure.
There is a procedure to speed up the re-learning process. Start and idle for 1 full minute with the AC off. Next turn on the AC and let idle for 1 full minute.
The PCM re-leaning is done to account for differences in motor wear, temperature, gas, and such.
I had a 96 that you could not get out of the driveway after the battery was removed until the quick learn procedure was done. Then it was fine.
As a double check, monitor the IAC % and verify that it changes when the AC is turned on/off. Also, it should be around 50%. If way low, may be vac leak.
Also, if you adjusted the stop on the TB, suggest that you put it back. The TB needs to allow only a very small amount (almost none) of air to pass. The bulk has to come from the IAC.
As a basic IAC function check, disconnect the electrical connector to the IAC. If dies right away, it is basically working. If it continues to run, the IAC is not adjusting, or there is a vacuum leak, or the TB butterfly valve is not closing enough.