tbran
Guest
this thing works off an ohm range, not a on off type sender.  Plug and unplug the spade a few times and make sure it clips on tight.  look where the wire exits the flywheel side of the engine for a bare place.  Follow to the eng harness connector and check that this is good and clean as well.  If all else fails run a new wire to the tattle tale module.  These things can drive one to drink and they need to work correctly.
 