P0183
UniversalFuel Temperature Sensor A Circuit Intermittent
The fuel temperature sensor reports fuel temperature to the vehicle’s control system. P0183 means the system detected an intermittent problem in Sensor A’s electrical circuit, so the reading may drop out or become inconsistent. Depending on the vehicle, this can affect fuel-management calculations or turn on the check-engine light; some vehicles may show no noticeable symptoms.
⚠️ Before You Begin (Safety First)
If the engine stalls, runs very poorly, or the vehicle becomes unsafe to control, stop driving when it is safe and arrange for assistance. Do not open fuel lines or probe wiring unless you know the vehicle’s safe service procedure.
Common Symptoms
- The check-engine light may be on, even if the vehicle seems to run normally.
- The fuel-temperature reading in scan data may jump, disappear, or behave inconsistently.
- If the fault affects fuel-management calculations, the engine may run unevenly or have reduced performance; these effects are not present on every vehicle.
- There may be no noticeable symptoms apart from a stored code.
Common Causes
- A loose, corroded, or damaged electrical connection at the fuel temperature sensor or elsewhere in its circuit.
- Wiring that is chafed, broken internally, or intermittently open as it moves or heats and cools.
- An intermittent fault within the fuel temperature sensor.
- A problem with a circuit connection or control module; further testing is needed before considering this cause.
Diagnostic Steps
- Record the code and any other stored codes before clearing anything; related codes and available freeze-frame information can help show when the fault occurred.
- With the vehicle safely parked and switched off, visually inspect accessible sensor wiring and connectors for looseness, corrosion, abrasion, or obvious damage. Do not pull on wires or open fuel lines.
- If you have a scan tool that displays fuel-temperature data, observe whether the reading is stable under the conditions available to you. An implausible or dropping reading can help guide diagnosis but does not by itself prove the sensor is faulty.
- If the code returns or the wiring damage is not obvious, have a technician test the circuit using vehicle-specific service information rather than replacing parts based on the code alone.
When to Call a Professional
A technician can check stored and pending codes and scan data, then inspect the sensor circuit for intermittent dropouts. Model-specific wiring information and appropriate electrical tests can help distinguish a sensor fault from a loose connection, damaged wiring, or a control-system issue. Confirm the cause before replacing parts.
Compare component listings
Confirm diagnosis and vehicle fitment before buying. A listing does not prove that a part needs replacement. We may earn a commission from qualifying purchases.
Commonly Asked Questions
Does P0183 prove that the fuel temperature sensor needs replacement?
No. The code identifies an intermittent circuit condition, which can come from the sensor, its connector, wiring, or another circuit fault. Testing is needed to identify the cause.
Can I drive with P0183?
If the vehicle runs normally, a short, cautious trip to arrange diagnosis may be reasonable. Stop driving if it stalls, runs very poorly, or becomes unsafe to control.
Why might there be no symptoms?
The fault may be intermittent, or the vehicle may continue to operate without a noticeable change while the code is stored. The check-engine light may be the only sign.
How can a technician tell a sensor fault from a wiring fault?
They can compare scan data with the vehicle-specific diagnostic procedure and test the circuit and connections for intermittent interruptions. A sensor should not be replaced until those checks support it.
Browse Available Code Guides
Previous and next available guides in database record order, across makes. Adjacent entries may share a code number and do not necessarily describe related faults.