P0461 on Mazda
Fuel Level Sensor 'A' Circuit Range/Performance
P0461 on Mazda vehicles indicates fuel level sensor 'a' circuit range/performance. Au7o has documented this code across 1 Mazda model — most commonly on CX-70. P0461 means the powertrain control module sees a fuel-level sensor signal that is implausible or doesn't change as expected — for instance, the reading stays fixed while fuel is consumed, or it moves erratically. The fuel level sensor (sending unit) in the tank reports how much fuel remains, and this data is also used by the EVAP system for certain leak monitors. Typically this only causes an inaccurate fuel gauge or skipped emissions tests rather than drivability problems. It is a low-urgency issue but worth fixing for an accurate gauge.
Common Causes of P0461
- •Faulty fuel level sensor / sending unit in the tank
- •Worn or dirty sending-unit resistor card or float
- •Wiring or connector problems to the sending unit
- •Corrosion at the fuel pump module connector
- •Stuck or damaged float arm
- •Poor ground for the sensor circuit
- •Instrument cluster or PCM fault (less common)
P0461 on Mazda by Model
Mazda CX-70(1 issue)
- Inaccurate Fuel Gauge Reading (Recall 78251)2025
Mazda recalled roughly 104,854 CX-70 and CX-90 vehicles because the instrument-cluster fuel gauge can display an inaccurate reading. When the tank is filled with ethanol-blended fuel, the ethanol can react with materials on the circuit board of the fuel-level sending unit, corrupting the reading. Owners can be misled into thinking they have more range than they do and run out of fuel without warning — a stall/loss-of-motive-power risk in traffic.
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View P0461 across all makes →Frequently Asked Questions
What does P0461 mean on Mazda?▼
P0461 stands for "Fuel Level Sensor 'A' Circuit Range/Performance." P0461 means the powertrain control module sees a fuel-level sensor signal that is implausible or doesn't change as expected — for instance, the reading stays fixed while fuel is consumed, or it moves erratically. The fuel level sensor (sending unit) in the tank reports how much fuel remains, and this data is also used by the EVAP system for certain leak monitors. Typically this only causes an inaccurate fuel gauge or skipped emissions tests rather than drivability problems. It is a low-urgency issue but worth fixing for an accurate gauge. On Mazda specifically, this code is documented across 1 model.
What causes P0461 on Mazda vehicles?▼
Common causes on Mazda: Faulty fuel level sensor / sending unit in the tank, Worn or dirty sending-unit resistor card or float, Wiring or connector problems to the sending unit, Corrosion at the fuel pump module connector, Stuck or damaged float arm. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0461 on a Mazda?▼
Repair costs vary widely depending on the root cause and specific Mazda model.
Which Mazda models have P0461 documented?▼
Au7o has documented P0461 on 1 Mazda model: CX-70.