The fuel pressure sensor is fitted to the fuel line and is accessible between the brake master cylinder reservoir and cowl panel. It measures the pressure from the fuel pump. Firstly, relieve pressure in fuel system. Subsequently, remove the battery along with the battery tray. Next, find the fuel pressure sensor and disconnect the electrical connector located on a fuel feed line near the firewall for 2013 and newer models. Carefully unscrew the fuel line from the sensor, while holding the fuel line with one hand to avoid any damage. To conclude, installation is the reverse of removal.