Fuel and air

P0461 — Fuel Level Sensor Range/Performance

Severity: low Safe to drive

What P0461 means

The control module monitors the fuel level sensor signal and compares it with actual fuel consumption and with how the level changes after refueling. P0461 is set when the readings aren't believable: the level stays frozen, jumps around or doesn't agree with the distance driven. The usual culprit is the sensor (the float and variable resistor in the fuel pump module) or its wiring.

Symptoms

  • Fuel gauge stuck on empty or full
  • Fuel gauge jumping or fluctuating
  • Check engine light on
  • Wrong distance-to-empty readout
  • Gauge doesn't change after refueling

Possible causes

  1. Failed fuel level sensor (worn resistor track, stuck float)
  2. Broken, corroded or damaged wiring or connector at the sensor
  3. Poor ground or power supply to the sensor
  4. Faulty fuel pump module assembly
  5. Rarely, a fault in the control module or instrument cluster

How to diagnose

  1. Scan for codes and freeze frame data, and look for other fuel system or network codes.
  2. Compare the scan tool fuel level reading with the actual amount of fuel in the tank.
  3. Inspect the fuel pump module connector and harness for corrosion, moisture or damage.
  4. Check power, ground and reference voltage at the sensor connector with a multimeter.
  5. Measure the sensor resistance while moving the float through its range; it should change smoothly with no dropouts.
  6. Check the mechanics: a jammed float or bent arm.
  7. After repair, clear the code and verify the reading while refueling.

Common fixes

  • Repair the wiring and connector in the fuel level sensor circuit
  • Fix a poor ground or power supply problem
  • Replace the fuel level sensor or the whole fuel pump module
  • In rare cases, update software or replace the control module or cluster

Questions and answers

Can I drive with a P0461 code?

Usually yes, since the engine keeps running normally. The fuel gauge may be wrong though, so track fuel by mileage and refill early.

Why is my fuel gauge stuck with P0461?

The module is getting an implausible or unchanging signal from the sensor. Common causes are a worn sensor in the tank or a bad connection at its connector.

Is P0461 related to the EVAP purge valve?

No. P0461 points to the fuel level sensor circuit. Purge valve and EVAP flow problems set different codes.

This is general information about the code. The meaning can differ between makes and models: a scan tool and the repair manual for your car will show the exact cause.