P0183Fuel Temperature Sensor A Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Needs a drive cycle to confirm a fix
- How the car detects it
- Fuel temperature sensor A is an NTC thermistor: the hotter the fuel, the lower its resistance and signal voltage. On diesels it sits in the injection pump, rail or return line; on Ford petrol direct-injection engines it is built into the rail pressure sensor, and GM uses digital rail temperature sensors on its direct-injection engines. P0183 means the signal is above its valid range – typically an open circuit, an unplugged connector, an open sensor ground or a short to 5 V; the control module would read about −40 °C. Limits: Ford diesel above 4.92 V, Ford petrol above 4.82 V for 5 s, GM diesel above about 122 kΩ (two trips), GM 6.6 litre above 4.71 V for 5 s, Saab EDC16 above 4.96 V for 0.6 s. On the Nissan Rogue the sensor sits in the fuel pump unit in the tank, and misrouted wires there caused P0183/P0181.
- What you may notice
- Check engine light on
- Fuel temperature in scan data about −40 °C
- Usually no change in driving; possibly hot-start problems
- Likely causes
- LikelyConnector off or wire open
- LikelySensor open internally
- PossibleWiring routing or chafing at the pump unit
- PossibleSensor ground open or short to 5 V
- RareEngine control module
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €50 – €400
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.