P0461 Fuel level signal not changing as expected

Fuel level sensor A circuit range/performance

Monitor

A fuel level sensor performance fault mainly affects the fuel gauge and fuel readouts, not how the engine runs.

It gets more serious if:

  • Inspect soon: Inspect soon if you cannot tell how much fuel is in the tank, since you could run out of fuel.

Source: how we rate severity

P0461 in short

P0461 means the computer sees a fuel level signal that is stuck or does not change plausibly as fuel is used. Causes include a worn level sender in the tank, wiring or connector problems, or a bad ground. It usually only affects the gauge, but you could run out of fuel if you trust it.

The computer expects the fuel level to change steadily as you drive. If the signal stays fixed after you burn a lot of fuel, or jumps around, it sets P0461.

Friday Parts lists a worn or stuck fuel sender, corroded or loose wiring, a poor ground, a gauge fault and rarely the computer. That article is written mainly for heavy equipment, so treat the list as general.

General Motors and Saturn bulletins cover P0461 on early 2000s Grand Am, Alero and Vue models, including a Vue whose fuel gauge reads empty.

Most likely causes

  1. Worn or stuck fuel level sender

    Common general cause
    Why it ranks here
    Friday Parts lists a worn sender resistor, a sunken float or a stuck arm first.
    What would change this
    Rises if the gauge sticks or reads empty after filling. Falls if sender resistance changes smoothly with the float.
    How to test the fuel level sensor (sending unit)

  2. Corroded, loose or chafed wiring or connector

    Common general cause
    Why it ranks here
    Friday Parts lists corrosion, loose connectors and chafed wires.
    What would change this
    Rises if the reading jumps with vibration or bumps. Falls if the circuit tests good.

  3. Known fuel gauge fault on some models

    Supported by vehicle data
    Why it ranks here
    Saturn's bulletin covers P0461 on 2002-2003 Vue models with a false low or stuck-on-empty gauge, and GM updated the P0461 diagnostic for the Grand Am and Alero.
    What would change this
    Rises on those models. Falls on other vehicles.

  4. Poor sender ground

    Possible — needs testing
    Why it ranks here
    Friday Parts lists a corroded or loose ground as a cause of wrong readings.
    What would change this
    Rises if the gauge reads strangely or other circuits near the tank misbehave.

What to test first

Start at step 1. Each result tells you what it means and where to go next.

  1. Compare the fuel gauge with how much fuel you added at the last fill-up, and read the codes.

    Low riskTool: OBD-II scan tool

    • IfThe gauge is stuck, jumps or reads empty after filling

      It meansCheck the sender and wiring.

      Go to step 2

    • IfThe gauge is accurate and the code returns

      It meansCheck wiring and ground for an intermittent fault.

      Go to step 2

  2. Have a technician check the sender connector, ground and wiring, and the sender's resistance range.

    Best left to a shopTool: multimeter, service manual

    Warning:The sender is inside the fuel tank. Do not open the fuel system yourself; fuel vapor is flammable.

Symptoms

  • Fuel gauge stuck on empty or full, or jumping
  • Check engine light
  • Low fuel warning with a full tank
  • Cannot tell how much fuel is left Gets more serious: stop and have it checked.

How to fix

  1. Track mileage since the last fill-up so you do not rely on the gauge.

Parts and cost context

  • Fuel level sensor (sending unit):The sender is often part of the fuel pump module. Confirm the cause first. Labour varies; get a quote.

Labor varies by vehicle and shop; get a quote before you approve a repair.

Compare used part prices on PartPriceGuide

On your vehicle

Saturn

  • 2002–2003 · Vue

    Supported by vehicle data

    Saturn bulletin 02-T-38 covers a false low or stuck-on-empty fuel gauge with P0461. Whether it is still current is not verified.

  • 02T38Status unverified

    False low fuel gauge with DTC P0461

    2002–2003vue · NHTSA 633464

    Fuel gauge shows a false low reading or is stuck on empty, possibly intermittent, with P0461 possibly set. The NHTSA summary does not give the repair.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

Mazda

  • 2000 · 626

    Supported by vehicle data

    Mazda bulletin 01000 covers this code: mIL on with P0461 stored in memory, 2000 626. Whether it is still current is not verified.

  • 01000Status unverified

    MIL on with P0461 stored in memory, 2000 626

    2000626 · NHTSA 613457

    Some 2000 Mazda 626 models may show the MIL with P0461 stored. The NHTSA summary does not give the repair.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

Subaru

  • 2002 · Impreza

    Supported by vehicle data

    Subaru bulletin 010901 covers this code: p0461 fuel level sensor range/performance, Impreza. Whether it is still current is not verified.

  • 010901Status unverified

    P0461 fuel level sensor range/performance, Impreza

    2002impreza · NHTSA 627819

    Subaru subject on P0461 fuel level sensor circuit range/performance on the 2002 Impreza.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

Pontiac

  • 2007 · G5

    Supported by vehicle data

    Pontiac bulletin 060849018 covers this code: inaccurate fuel gauge with P0461, Cobalt, G5 and Ion. Whether it is still current is not verified.

  • 01-06-04-026Status unverified

    Service manual update for P0461 diagnostic

    2000grand-am · NHTSA 619364

    Revised P0461 fuel level sensor performance diagnostic procedure. Also covers the Oldsmobile Alero.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • 060849018Status unverified

    Inaccurate fuel gauge with P0461, Cobalt, G5 and Ion

    2007g5 · NHTSA 10020891

    Fuel gauge reads empty with fuel in the tank, low fuel message and P0461 on 2007 Cobalt, G5 and Ion.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

Chrysler

  • 2007 · Town and Country

    Supported by vehicle data

    Chrysler bulletin 1803006 covers this code: mIL with P0461, 2007 Caravan family. Whether it is still current is not verified.

  • 1803006Status unverified

    MIL with P0461, 2007 Caravan family

    2007town-and-country · NHTSA 10021249

    Check engine light with P0461 on 2007 Caravan, Town and Country and Voyager.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

All Fuel pump and injectors codes

P0461 questions

Will P0461 stop the car?

No, but the fuel gauge may be wrong. Track mileage between fill-ups.

Sources and review

  1. DTC P0461: Fuel Level Sensor A Circuit Range / Performance — Friday Parts ,
  2. Saturn 02-T-38, false low fuel gauge with DTC P0461 — Saturn via NHTSA
  3. GM 01-06-04-026, service manual update for P0461 fuel level sensor performance diagnostic — General Motors via NHTSA
  4. Mazda 01000, MIL on with P0461 stored in memory, 2000 626 — Mazda via NHTSA
  5. Subaru 010901, P0461 fuel level sensor range/performance, Impreza — Subaru via NHTSA
  6. Pontiac 060849018, Inaccurate fuel gauge with P0461, Cobalt, G5 and Ion — Pontiac via NHTSA
  7. Chrysler 1803006, MIL with P0461, 2007 Caravan family — Chrysler via NHTSA
Last reviewed
Written by
Saurabh K.
Editorial review
Pending
Technician review
Technician review pending

This page explains what a code usually means; it is not a substitute for a professional inspection. How we source and review · Report an error

My Car

Pick your car and code pages will point out notes and bulletins for it. Saved only in this browser.

Fill this in from your VIN

Used once to identify your engine; not stored.