| Clean grounds as John says; also re-seat the 5-pin connector that feeds the circuit card on that side. Sometimes a loose connection there can prevent either input voltage or gauge continuity. You can ground the wire at the temp sender and see if the temp gauge starts going up. Same for fuel- ground the wire at the sender and watch fuel gauge. Keep in mind that, since you replaced the fuel gauge, you have also replaced your limiter. The voltage limiter feeding the fuel and temp gauges their 5V is inside the fuel gauge housing. You can check for +12V at the appropriate wire in the harness that terminates at the 5-pin connector. I don’t recall the wire color but it should be at the circled pin here:  As you face the dash while sitting in the driver seat it’s the second one from the right; if you look at the back of the instrument cluster it’s the second from the left. Make sure you have 12V here. D&K Sent from my iPhone On Dec 30, 2023, at 17:21, John Grady <jkg@xxxxxxxxxxxxxxxxx> wrote:
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