how to fix the fuel gauge issue on my Honda CR-V

Solution

1. Preparation

• Tools Required: OBD-II scanner, multimeter, socket set, Phillips screwdriver, wiring diagram for reference.
• Disconnect the negative battery terminal to ensure safety.

2. Access the Fuel Level Sending Unit

• Remove the rear seat or cargo cover to access the fuel tank access panel.
• Unscrew and remove the access panel to expose the fuel pump assembly.

3. Remove the Fuel Pump Assembly

• Disconnect the electrical connector from the fuel pump.
• Carefully unscrew the retaining ring that holds the pump assembly in place.
• Gently lift the pump assembly out of the tank, taking care not to damage the fuel level sending unit.

4. Inspect and Replace the Fuel Level Sending Unit

• Use a multimeter to test the resistance of the sending unit:
  • At full tank, it should read around 0-5 ohms.
  • At empty tank, it should read around 100-120 ohms.
• If the readings are out of range, replace the fuel level sending unit.
• Tools Required: Replacement fuel level sending unit, thread sealant (if applicable).

5. Reinstall the Fuel Pump Assembly

• Carefully place the new or inspected fuel level sending unit back into the fuel tank.
• Secure the assembly with the retaining ring and reconnect the electrical connector.
• Replace the access panel and secure it with screws.

6. Final Steps

• Reconnect the negative battery terminal.
• Start the vehicle and check the fuel gauge operation.