I built my own trans a while back but it keeps going into limp mode i read somewhere i need to install a resistor somewhere in the wiring harness by the pcm does anyone know what wire and where and what size resisitor

 

Does "built" mean a stock rebuild or a $5,000 exotic parts unit with a heavy duty, high pressure valve body?????/ Instructions for a high pressure vb should specify need for wiring resistor. Check with vendor if this is case.