P0464 — Fuel Level Sensor Circuit Intermittent
Can drive — fix at your convenience.
What P0464 means
P0464 means the fuel level sensor circuit has an intermittent fault, where the signal cuts in and out instead of staying steady. The fuel level sensor in the tank reports the fuel amount to the gauge and computer. Because the fault comes and goes, the fuel gauge may behave erratically, but it usually doesn't affect how the car drives.
Common symptoms
- Check Engine light is on (may come and go)
- Fuel gauge jumps or fluctuates erratically
- Gauge reading drops out then returns
- Low fuel light flickers on and off
- Trip range estimate keeps changing
Common causes
- Loose or corroded connector at the fuel level sensor
- Intermittent wiring fault or chafed wire
- Worn fuel level sensor with intermittent contact
- Poor or loose ground connection
- Faulty instrument cluster
Typical repair cost
$100 – $400
Varies by vehicle and root cause.
Frequently asked questions
Can I keep driving with a P0464 code?
Yes, it's generally safe. The main downside is an unreliable fuel gauge, so keep track of your mileage and fill up a little early until it's fixed so you don't run out unexpectedly.
How much does it cost to fix a P0464?
Repairs usually run about $100 to $400. Tightening or repairing a connector and wiring is cheaper, while replacing the in-tank fuel level sensor costs more because of tank access.
Is a P0464 code serious?
No, it's low severity. It mostly affects your fuel gauge rather than how the car drives, but fixing it lets you trust the gauge again and clears the Check Engine light.
Why is P0464 intermittent and harder to diagnose?
Because the fault comes and goes, often from a loose connector or chafed wire, it may not show up during a quick test. A technician may need to wiggle-test the wiring to catch it.