Frontier XE King Cab 4WD V6-3.3L (VG33E) (2002)
3. Install the Connector Cover onto the Fuel Sending Unit Connectors until it is fully seated. See Figure 4.
4. Use the Nylon Brush #J-47239 to loosen/remove dirt and debris on the vertical surface of the Fuel Sending Unit Connectors (see Figure 5).
5. Remove the Connector Cover once you're done with the above step.
6. Install the Cleaning Adapter (white color adapter) onto the Fuel Sending Unit Connectors until it clicks (locks) in place. See Figure 6.