OBD-II Code
P0180
Severity
Not yet reviewed
Nobody on our side has assessed this code yet, so we are not going to guess at how serious it is.
Can you drive it
We cannot say
Treat it as unknown until a shop reads it with live data. If the check-engine light is FLASHING, stop driving as soon as it is safe to — that means an active misfire, whatever the code.
Indicative cost (USD)
$150–$850
From this code's diagnostic notes. Varies by vehicle, diagnosis, parts, and local labor. This is not a repair quote.
P0180 means the fuel temperature sensor A circuit is faulty — typically an electrical out-of-range condition, either open-circuit, shorted, or signal voltage outside the plausible window for any normal fuel temperature.
How a shop works this
Work from evidence to part, not the other way round. A code names a circuit or a symptom; it does not name the part that failed.
Note every code that is set, not just this one.
Codes that appear together usually narrow the cause faster than any one of them read alone.
Read the freeze frame — the conditions the fault was recorded under.
Cold or warm, idle or load, road speed and engine speed. A fault that only appears cold is a different fault from one that only appears under load, even with the same code on the scanner.
Confirm the fault is current rather than history.
Clear the code and see whether it returns under those same conditions. A code that does not come back may have been logged during a repair, a flat battery, or a bad connection that has since been disturbed.
Then follow the diagnostic notes further down this page, in the order they are written.
They are written in the order a shop works this code, cheapest checks first. Where they name a component, inspect its wiring and connector before replacing it.
If the code comes back after a repair, the underlying fault is still there. That is the point to bring in a scanner with live data and freeze-frame, or a shop that has one.
Common symptoms
- Check engine light
Read the full diagnostic procedureP0180 means the fuel temperature sensor A circuit is faulty — typically an electrical out-of-range condition, either open-circuit, shorted, or signal…
P0180 means the fuel temperature sensor A circuit is faulty — typically an electrical out-of-range condition, either open-circuit, shorted, or signal voltage outside the plausible window for any normal fuel temperature. Fuel temp sensor A is the primary fuel temp input (some systems have a sensor B as a redundant or downstream check, mostly on diesels and high-end FFV gasoline systems). Normal operating fuel temp window is 60-200F; the sensor is a standard NTC thermistor that reads roughly 2.5-3.0V at 100F and 0.8-1.2V at 200F, with the ECM expecting the voltage to track engine load and ambient conditions over time.
Cheapest-first ladder
- scan live fuel temp data with key on engine off after an overnight cold soak — the reading should match ambient air temperature within 10F (fuel and ambient air both sit at the same temperature after a long soak); if the scan tool reads -40F or +250F, the circuit is faulted.
- Unplug the sensor connector and observe the scan tool — a healthy ECM should bias the signal to roughly 4.8-5.0V (open-circuit reference, reading as -40F to the ECM); if it stays at the same fault reading with the sensor unplugged, the wiring is the problem.
- Jumper the signal wire to ground at the harness and the scan tool should read +250F+; if it doesn't, the signal wire is broken between the harness and the ECM. Expensive-misdiagnosis caveat: on systems where the fuel temp sensor is integrated into the in-tank fuel pump module, replacing the sensor means dropping the tank and swapping the entire $300-800 pump assembly — verify with an ohm-meter that the sensor element is actually failed before quoting the job.
Vehicle-specific patterns2004-2011 Ford F-150 FFV / Explorer FFV with the 4.6L/5.4L flex-fuel platforms throws P0180 from in-tank fuel-temp sensor corrosion after long E85 du…
- 2004-2011Ford F-150 FFV / Explorer FFV with the 4.6L/5.4L flex-fuel platforms throws P0180 from in-tank fuel-temp sensor corrosion after long E85 duty — the sensor is integrated into the fuel pump module and requires a full module swap on most VINs.
- 2005-2010GM Impala FFV / Tahoe FFV with the 5.3L/3.5L flex-fuel commonly throws P0180 from the fuel-temp element inside the fuel pump module failing open-circuit.
- 2007-2012RAM 2500/3500 6.7L Cummins throws P0180 from the rail-mounted fuel temp sensor failing after hot-soak duty cycles or from harness chafe at the fuel-rail-to-frame transition.
- 2003-2009Chrysler Sebring/PT Cruiser FFV with the 2.4L/2.7L throws P0180 from harness corrosion at the tank-mounted sensor connector.
Estimated repair$150 to $850.
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