The problem is in the ECU sensing it's time to engage the SC. Everything works and has power but the ECU will not switch on the SC. I tried 3 different relays, a ton of wiring options and a different ECU which is the last chance fix. All with no luck.
You can manual lock the magnet and engage the SC by bypassing the switch/ECU but the ECU will not do it by itself. I'm stumped. There is a gremlin in there that will take a much smarter person than me to find. Maybe you check the forums to see if anyone else has had this problem after a swap.
The donor 4agze came from a complete 1989 SC car with damaged body, so I have all the parts necessary to do the swap. The subject car is a 1986 HT automatic. If you have any ideas of what the problem might be I would appreciate it. The only thing I can think of is the guy that originally started this project messed up the wiring job because of the differences between NA / SC harness.