OBD-II P0464 Error Code: How to Fix Fuel Level Sensor Intermittent

Medium 1-3 hours Medium Severity Verified June 2026
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Error Code
P0464
Brand
OBD-II Generic
Product Type
automotive
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
1-3 hours
Error code P0464 indicates that the powertrain control module (PCM) has detected an intermittent signal from the fuel level sensor. This means the fuel gauge reading may fluctuate, be erratic, or show an incorrect fuel level. The issue is typically caused by a faulty sensor, wiring problems, or a loose connector.
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Tools You'll Need

How to Fix Error Code P0464

  1. Check for Other Codes

  2. Inspect Fuel Level Sensor Connector

    Disconnect the battery negative terminal before working on any electrical components to prevent short circuits or sparks. Work in a well-ventilated area away from open flames, as fuel vapors are flammable.

  3. Test Sensor Resistance

    Do not puncture or damage the sensor insulation. Avoid contact with fuel.

  4. Inspect Wiring Harness

  5. Replace Fuel Level Sensor (if needed)

    Relieve fuel system pressure before disconnecting fuel lines. Wear safety goggles and gloves. Have a fire extinguisher nearby.

  6. Clear Codes and Test Drive

Parts You May Need

Fuel level sensor
Check Price on Amazon
Fuel pump module (if sensor is integral)
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Fuel level sensor
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Fuel pump module (if sensor is integral)
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Fuel level sensor
Check Price on Amazon
Fuel pump module (if sensor is integral)
Check Price on Amazon
Fuel level sensor
Check Price on Amazon
Fuel pump module (if sensor is integral)
Check Price on Amazon
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When to Call a Professional

If you are not comfortable working around fuel systems, or if the sensor is located inside the fuel tank requiring fuel pump removal, consider a professional mechanic. Also seek help if the wiring harness repair is extensive or if the problem persists after sensor replacement.

Frequently Asked Questions

Can I drive with code P0464?
Yes, but the erratic fuel gauge could lead to running out of fuel unexpectedly. It's best to repair it promptly.
What causes the P0464 code?
Common causes include a faulty fuel level sensor, corroded connector pins, damaged wiring, or a loose ground.
How much does it cost to fix P0464?
If you DIY, a replacement sensor costs $20-$100. A mechanic may charge $150-$400 including labor.
Will disconnecting the battery fix P0464?
Temporarily clearing the code, but if the underlying issue remains, the code will return.
Is P0464 the same as a bad fuel pump?
No. P0464 is for the fuel level sensor, which sends data to the gauge. It does not affect fuel delivery unless the pump module includes the sensor.

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