Testing a fuel tank vacuum sensor

A method of determining whether a vacuum/pressure sensor in a vehicle fuel tank correctly indicates a vacuum level in the tank. An input from the sensor is obtained. The tank is sealed for a predetermined time period. After the time period, another input is obtained from the sensor and the sensor in...

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Bibliographic Details
Main Authors McLain, Kurt D, Kropinski, Michael A
Format Patent
LanguageEnglish
Published 20.05.2008
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Summary:A method of determining whether a vacuum/pressure sensor in a vehicle fuel tank correctly indicates a vacuum level in the tank. An input from the sensor is obtained. The tank is sealed for a predetermined time period. After the time period, another input is obtained from the sensor and the sensor inputs are compared.