I am currently rewiring my 74 with an ez wiring harness. I am using the original gauges and soldered in all the connections to the 12 pin round thingy that plugs into the back of the stock gauge cluster. I had one wire left over and of curse it is the 12 v power feed. SO the the question is were would that connect to the gauge cluster or am I just ass backwards on how i'm doing this. To me It looks like I should be taking each branch circuit "oil sending unit, water temp" to the back of each gauge and grounding it off the other stud sticking out of the back of the gauge itself. Or is that one big circuit board then were would power go. Any help would be greatly appreciated.
no power to gauges
- Thread starter ernest
- Start date
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12V nominal power goes to the fuel gauge, which has a built in voltage regulator to supply power to the fuel gauge meter and to the oil and temp gauges. Each sender is grounded at its source, completing the circuit. You only need one wire for each sender and you only need one power wire to the fuel gauge. You can check a schematic in tech links to get the color code of these wires.
