(I also posted this in the Freightliner section)
Our Allegro has Banks electric boost and EGT gauges. I'm pretty sure they're 'add-ons', since they don''t match any of the other gauges (they're on the far left)
Both are dead as doornails...
The electric feed is gray-covered with 5 wires.
The boost gauge has a white wire to + and a black wire to -
The EGT gauge has a red wire to + and a black wire to -
The 5th wire is a lonely green wire, with a male spade plug that's just dangling, not connected to anything. There's no other connection point on the gauges...
FWIW, the light wires have never been connected, which is another reason I suspect Tiffin didn't install them...
I don't know if any other Banks stuff has been installed? (sending units at least?) And I've spent an hour online trying to find an owners/installation manual, with no success. All I DID find is that in all of wiring diagrams I found, none contains any green wire? I know that green wires in AC apps are always ground wires, and I could probably get away with grounding it just to see what happens, but... ?
Any help would be greatly appreciated!