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re temp sensor
Paul
The guages have a voltage regulator as a source of stable reference. I have a feeling the voltage regulator may be at fault, however, both front and rear should drop if this occurs.
The sensor itself is a thermistor or a resistor that varies with temperature. There is a possibility they could jump based on an internal fault. This can be caused by a temperature shift.
Think I would swap the sending units or the wires to the guages and try again.
fyi
Bob
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