Fuel Tank Pressure (FTP) Sensor

On Accent, Fuel Tank Pressure (FTP) sensor is located on fuel filler neck. On all other models, FTP sensor is located between fuel tank and rear suspension crossmember. FTP sensor is a pressure-sensitive variable resistor. It measures fuel tank pressure changes, monitoring fuel tank for leaks. It is used to close the evaporative system, and observes tank pressure respectively with canister close valve.