That sensor is the same as a fuel level gauge, it varies the ohms/volts allowed thru it for the gauge to read. The wire has to supply the power to do that. If the wire out of the gauge is dead, there is another issue. Hopefully, the wire didn't get grounded with ignition live during the engine bay cleaning and shorted the gauge out. Is there an in-line fuse that may have blown ??
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Mitch
1970 Chevelle SS
1966 Chevelle SS
1967 Camaro ss/rs
1938 Business coupe, street rod
2000 FXSTS, original owner, 13k miles
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