I have the Cosmo JC 20B shop manual in pdf form. It's all in Japanese. If anyone needs it send me a PM and I'll email it to you. The whole thing is 26MB so I broke it into 11 files so it can be emailed easier.
If anyone can translate it into English, please share it with the class...
I also have 2 of 3 jpegs of the ECU wiring...