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It's an auto-meter electric guage. wired from sender to (S) side of guage: (I) side of guage to 12v source at fuse-box. pretty straight forward. What could be wrong here?



Autometer hookup uses three wires, ignition (12v) Sender & Grd... you only list 12v & sender... When viewed from the back of the gauge 12v goes to the left upper post, sender goes to right upper post & ground goes to the center lower post...