Fuel Tank Pressure Sensor

On Accent, the Fuel Tank Pressure (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. Canister Close Valve (CCV) is used to close the evaporative system, and observes tank pressure.