P0180Fuel Temperature Sensor A Circuit
- 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. P0180 is the general circuit fault without telling low from high. None of the manufacturers checked (GM, Ford, Saab/Bosch, Nissan) uses it – they report P0181–P0184 instead. No manufacturer document using exactly this code was found; the description rests on CARB's circuit monitoring requirement and component information. With a sensor fault the control module uses a substitute temperature (Saab EDC16: 50 °C).
- What you may notice
- Check engine light on
- Substitute value; possibly starting problems in cold or hot conditions
- Likely causes
- LikelyWire or connector open or corroded
- LikelySensor faulty
- RareControl module reference or ground
- 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 – €300
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.