Fuel Tank Pressure (FTP) Sensor

On Accent, The FTP sensor is located on fuel filler neck. On all other models, the FTP sensor is located between the fuel tank and rear suspension crossmember. The 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.