P0183
Fuel Temperature Sensor A Circuit High
- Severity
- Low
- Driving
- Drivable — book it in
Fuel temperature sensor "A" is reading high - outside the range a working sensor can produce, rather than merely inaccurate. Note that on these sensors the electrical direction and the temperature direction are opposite: resistance falls as temperature rises, so a short circuit reports impossibly hot fuel and an open circuit reports impossibly cold.
Possible causes
- CommonFailed fuel temperature sensor
- CommonCorroded or wet connector
- CommonWiring fault between the sensor and the module
- PossiblePoor earth at the sensor
What you might notice
- Slightly rough running or hesitation
- Hard starting in very hot or very cold conditions
- Poor fuel economy
- Check engine light on
- Often nothing noticeable at all
What to check, in order
- Compare the fuel temperature reading against ambient with the vehicle standing overnight. They should be close; a large difference on a cold vehicle condemns the sensor.
- Inspect the connector for corrosion and water ingress. These sensors are frequently mounted low down or in the tank, where connectors suffer.
- Check the wiring and the earth before replacing the sensor.
- Do not expect dramatic symptoms. This sensor trims fuelling rather than determining it, so the code is often the only sign - which is not a reason to ignore it, because the trim it applies is wrong until it is fixed.
- Unplug the sensor and see which way the reading moves. An open circuit and a short circuit drive it to opposite ends, which tells you whether the fault is in the sensor or the wiring without removing anything.
Read this code from your own car
Plug an ELM327 adapter into the OBD-II port under the dashboard. Pin16 reads every stored, pending and permanent code, explains each one like this page does — offline, with no account — and shows what the car recorded when the fault was set.
Where this code sits
P00xxP01xxP02xxP03xxP04xxP05xxP06xxP07xxP08xxP09xxP0AxxP0BxxP0CxxP0DxxP0ExxP0FxxP10xxP11xxP12xxP13xxP14xxP15xxP16xxP17xxP18xxP19xxP1AxxP1BxxP1CxxP1DxxP1ExxP1FxxP20xxP21xxP22xxP23xxP24xxP25xxP26xxP27xxP28xxP29xxP2AxxP2BxxP2CxxP2DxxP2ExxP2FxxP30xxP31xxP32xxP33xxP34xxP35xxP36xxP37xxP38xxP39xxP3AxxP3BxxP3CxxP3DxxP3ExxP3Fxx
Fuel and air metering
P0100P0101P0102P0103P0104P0105P0106P0107P0108P0109P0110P0111P0112P0113P0114P0115P0116P0117P0118P0119P0120P0121P0122P0123P0124P0125P0126P0127P0128P0129P0130P0131P0132P0133P0134P0135P0136P0137P0138P0139P0140P0141P0142P0143P0144P0145P0146P0147P0148P0149P0150P0151P0152P0153P0154P0155P0156P0157P0158P0159P0160P0161P0162P0163P0164P0165P0166P0167P0168P0169P0170P0171P0172P0173P0174P0175P0176P0177P0178P0179P0180P0181P0182P0183P0184P0185P0186P0187P0188P0189P0190P0191P0192P0193P0194P0195P0196P0197P0198P0199