This could just be that I am running a UZS131 Crown tranny on a UZZ31 Soarer ecu.
I'm guessing the Soarer uses an A341E and the Crown uses an A340E?
Yes. You can put a power resistor(10Watt) in to the loom to trick the ECU. I wonder how solenoid 3 will operate. In the A340E this is the TC lockup and is either on or off but in the A341E with a Soarer ECU this solenoid in a proportional type with a different impedance though it's still TC lockup. I wonder if the TC lockup will work correctly becuase of this.
Another difference with my A341E vs an A340E I have is that the Soarer box has a forward mounted speed sensor on the right side, post TC on the transmission input shaft after the oil pump. I wonder if this is also needed for the ECU to stop it spitting out a fault code.