This gauge has four wires running from it. I know where the black and white wires can go. Although not the orange and red. I have searched the forums, and looked at a wiring diagram. Any feeback on this would be great. Same wiring as about every other D-gauge except boost.

White - 12v small lamp on wire (will go on dimmer)
Black - Ground (grounded out)
Orange - 12v when ignition on (?)
Red - 12v battery wire (?)

Thanks,
Joe

 

Bump! Help!

 

http://www.roadraceengineering.com/e...-ecuwiring.htm

Pinout diagram from RoadRace Engineering. I used pin 80 for the red wire (12v constant) and pin 25 for the orange (12v switched). Some say you can put both red and orange on the switched power supply. Seems that should work too.

Good luck.