i have a nordskog boost controller 0-16 psi - not this model number but the same one as show on this page -
http://www.nordskogperformance.net/prodig2.html
it has 4 wires, red/black/orange/purple -
red power, black ground, does anyone know what the others are for?
i have a sending unit, so i'm sure one (not sure which) goes to that, and the remaining wire i have no idea. i lost the instructions, and 2 attempts at contacting nordskog have failed - friendly on the phone, but the first time they e-mailed the wrong doc and the 2nd they forgot to attach anything. help?