I swapped to an entirely not cc engine. I just pulled the ECM and harness out. There were only three wires connecting out of the entire harness. They run behind the engine so I'm assuming it is for locking up the TCC. There's a light blue, light purple, and a tan with a brownish stripe. If it is for the TCC, how do I wire it up to a switch to lock up the TCC?

 

I'm not a 100% on this but i think that the purple wire needs 12 volts to lock up the converter. Go to www.700r4.com there are diagrams on there on how the lockup works.

 

Is anybody 100% on the purple wire needing power? 700R4.com isn't much help. what about the other wires?