94 and 95 OBD I PCMs are programmable also just like the OBD II stuff. Not as many bells and whistles but a non-removeable chip same as OBD II... Transition years. LT1 Edit can be used or most tuners can still hook you up. If you have an OBD II LT1 or LT4 engine (1996) you can run OBD I on it by swapping PCM, harness and knock sensors. After the swap you will no longer have to worry about the after cat O2 sensors either since they are an OBD II "feature". Do a forum search on the F-Body web site for more detailed info on the swap.