i'm not sure because i've never worked on an automatic 240, unless they were A) converting to manual, or b) doing a turbo swap that of course is a manual. i'll see if i can pull the wiring schematic tomorrow at work, and see if they change to red and white, but i wanna say no, because whenever you're wiring in an safc or a dash plug, the speed signal is still yellow with a green stripe, not red (that's on a manual though). those wires may end up going to the cruise control solenoid though, you can check by testing for continuity from that point to the cruise control actuator, and or the ecu, to see if those wires are even anything to do with this issue at all. i can't help you unless you help me lol. i need you to check and see where those wires go, i will say however what kind of trans fluid are you using in these transmissions, and when you swapped the trannies did you swap the torque converters also?