Glad it worked out!

 

This is good info - you’re right, lack of info on PCM swaps. I’m trying to get help from someone with Witech for a PCM swap on mine, but the particular detail I’m curious about is this - what’s the eeprom you swapped? Is it inside the physical PCM?

 

Better late than never update. Swapping the original eeprom onto the donor engine computer is not enough for this pcm. After a few days of driving the discrepancy between the code in the new pcm and the original eeprom causes the engine computer to lock. You can disconnect and reconnect the car battery to reset the computer and the car will run until at a random point the computer will lock again - and repeat.
I found a work around, instead of physically removing the eeprom from the original computer and soldering it onto the new board you can use a eeprom programmer (buy one for a few bucks anywhere, search "95 eeprom programmer" online) to copy the hex data over to the new chip. The difference here is that we can now use the eeprom programing software to lock it with BP1 and BP0 encryption. Allowing the ECU to read from the eeprom but not write. The car has now been running for multiple months without issue.
Currently learning how to use a passthrough to program these computers, as a permanent and more professional fix. Hopefully I'll have it figured out by the summer

 

Crud, this’ll be harder than I expected. This info is gold, though, thank you for sharing.

My experience was getting a used unit from a scrapyard and attempting a reset usingWiTech. Short version, didn’t work, the WiTech can only program one that’s been virgin’ed.