What P0460 means
The fuel level sensor is a float on a resistor track in the tank unit.
How the engine computer detects it
It is no emission part, but other monitors depend on it – the EVAP leak tests, for example, need at least 15 % fuel – so CARB requires it to be monitored and the usual exemption from the warning lamp does not apply. P0460 is the general circuit code for sensor A, the main or only fuel level sensor. Ford sets it instead of P0462/P0463 below 5 Ω or above 200 Ω for 30 s and until about 2012 also used it for a stuck sensor (fuel use compared over 100–120 miles); Saab's Trionic T8 uses it for a sensor that does not change. GM does not use P0460. The gauge then shows wrong values or a substitute, and level-dependent monitors do not run.
Written from public technical sources and not yet checked by a mechanic. How we write these pages
Symptoms
- Fuel gauge wrong, stuck or jumping
- Range display and low-fuel warning wrong
- Check engine light (depending on the maker)
Common causes
- Resistor track worn or float arm sticking Most likely
- Wire or connector at the tank unit open or shorted (corrosion) Possible
- Instrument cluster or gateway sends a wrong value (if the level comes via the bus) Less likely
- Frequent topping up or overfilling (plausibility test fails without a defect) Less likely
How to diagnose P0460
- Read every stored code with an OBD-II scanner. If misfire or fuel trim codes are there too, fix those first: they often cause this one.
- Inspect the parts involved: fuel level sensor a, fuel tank unit, sensor wiring, engine control module.
- Work through the causes above from most to least likely, cheapest checks first.
- Clear the code and drive a full drive cycle to confirm the repair held.
Vehicles that report P0460 most
| Vehicle | Years | Reports | Share | Median miles |
|---|---|---|---|---|
| Ford Focus | 2013–2016 | 3 | — |
Counts of owner complaints to the NHTSA that mention P0460 (8 in total), not failure rates: popular models get more complaints simply because more of them are on the road. Models with fewer than 3 complaints are left out.
Reading the code
- P
- Powertrain
- 0
- Generic (SAE) code
- 4
- Auxiliary emission controls
- 60
- Specific fault
Questions drivers ask
Can I drive with code P0460?
Usually yes for a short time, if the car drives normally, the temperature gauge reads normal and the check engine light is steady. If the light flashes, the engine loses power or overheats, or other warning lights come on, pull over and have it checked.
Will my car pass an emissions inspection with P0460?
Probably not in states that test vehicles with an OBD-II scan: an emissions-related code that keeps the check engine light on is usually an automatic fail. Rules differ by state and county, so check yours.
Will P0460 clear by itself?
The light can go off after several drive cycles without the fault, but the code returns if the cause is still there. After a repair, the readiness monitors need a full drive cycle before an inspection.
This page is general information, not a substitute for a professional diagnosis. Repair costs are rough estimates for parts and labor and vary by vehicle and region.