I got a 1986 Marque with the Cat 3208 and i needed to put the fuel tank back up under the motor home. well after i got it up in place i see a wire hanging down about 6 inches below the tank it is alone in the protective plastic tubing and it is yellow with the number 81 on it, also has a female connector on it. I dropped the tank back doun at one end as have not been lucky to find its home. Help me please.