>> B << Fuel High-Pressure Hose Connection
WARNING: This page is about a different car, the 2014 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
After connecting the fuel high-pressure hose, slightly pull it to ensure that it is installed securely. Also confirm that there is a play approximately 3 mm. Then install the stopper securely.
Apply a small amount of engine oil to the fuel line pipe and then install the fuel high-pressure hose.