P0464 Fuel Level Sensor Circuit Intermittent

OBD2 Code: P0464

Description: Fuel Level Sensor Circuit Intermittent

Definition: This code indicates that the fuel level sensor circuit is experiencing intermittent issues, meaning there are sporadic disruptions in the signal from the fuel level sensor to the vehicle’s Powertrain Control Module (PCM). This can result in inaccurate or erratic readings of the fuel level on the dashboard gauge.

P0464 – Fuel Level Sensor Circuit Intermittent

Typical Severity: Moderate

Common Causes

P0464 – Fuel Level Sensor Circuit Intermittent

Common causes:

• Faulty fuel level sensor
• Corroded or damaged wiring/connectors in the fuel level sensor circuit
• Loose or poor connection at the fuel level sensor
• Fuel tank that is too low or too high causing inaccurate readings
• Issues with the instrument cluster or related components

 

Common Misdiagnosis

OBD2 Code: P0464

Description: Fuel Level Sensor Circuit Intermittent

Common Misdiagnosis: Replacing the fuel pump or fuel tank assembly without confirming the actual fault in the fuel level sensor circuit.

 

Common Diagnostic Steps

OBD2 Code: P0464

Description: Fuel Level Sensor Circuit Intermittent

• Check for any Technical Service Bulletins (TSBs) related to the fuel level sensor or circuit.
• Inspect the fuel level sensor wiring and connectors for damage, corrosion, or loose connections.
• Use a multimeter to test the voltage and ground signals at the fuel level sensor connector.
• Perform a continuity test on the fuel level sensor circuit wires to check for breaks or shorts.
• Inspect the fuel tank area for signs of damage that could affect the sensor operation.
• If applicable, use an OBD2 scanner to monitor live data from the fuel level sensor while manipulating wires to identify intermittent issues.
• If all tests pass, consider replacing the fuel level sensor as it may be faulty internally.