Originally Posted by Dwight
just looking over some of my note and found something you guys can help with.
The fuel tank sending units, are they a three wire or two hook up. I have a shielded 2 conductor cable (black & white) to the dash but there is a blue wire terminated on the sending units. When I traced it out I found it butt splice to another blue wire (the other unit) and then cut, dead end. Do I need a third wire?
Couple of pictures attached.
View of the opening for the bubble after inner liner glued to outside panel. You can see the seam and how tight it comes together. Hope this helps.
The sending unit has one wire. The second would be the ground. Each sending unit wire would go the the separate gauges. It has been five years since I wired it, but my recollection is that a short wire was connected from the sending unit cover plate to a chassis ground to assure a good ground connection and then the fuel gauge ground was joined to the common ground buss behind the dash. In other words only one wire per sending unit to the dash. No need to shield the sending uint wire since it is not RF sensitive.
Compare yours to the picture attached. If you have a different type of sending unit the wiring may be different.