METHOD AND SYSTEM FOR ADJUSTING PRESSURE IN A FUEL TANK

Abstract: methods and systems for diagnosing an evaporative emissions system are discussed. an example method includes diagnosing a venturi pump of an evaporative emissions system based on feedback from an evaporative leak check module (elcm) pressure sensor and a fuel tank pressure transducer (ftpt). an engine of a vehicle is off during the diagnosing.

Inventor(s): Aed Dudar

CPC Classification: F02M25/0809 (SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF)

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