Will loosen strap and try to straighten the tank in the morning, I have 0 - 30 ohms from the sender to the gas gauge manually with sender out of tank, in the tank on its own the gas level is off about one quarter to almost a half tank. will run a jumper off the neg battery term to the sender ground screw in the morning, will get back to yaw in the morning, runnin out of light and the skeeters are getting hungry.