Fitech on My 440 with an Aeromotive in tank pump, 3/8 feed 5/16 return line.
On this system the white wire has to have keyed on power. I used diode near the ballast resistor to achieve this. I rushed this part and it is not very pretty.
Hey AndyF, perhaps you could design a simple, attractive plug-n-play diode setup for this application.
