P2025EVAP Fuel Vapor Temperature Sensor Performance
- 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
- P2025 means the vapor temperature reading is electrically valid but does not make sense against other inputs or over time. Audi documents a real-world cause on 2016–2018 A6 and A7 with the 3.0 litre engine: water gets into the tank ventilation path, runs past the leak detection pressure switch (NVLD) into the canister and turns to ice in cold weather. Owners notice the pump nozzle clicking off while refuelling, and P2025 can appear with P0441, P0451 and P0453. The bulletin has the canister weighed – above 2650 g it is replaced with switch and vent tube – and the filter relocated or the wheel liner updated. Volkswagen released ECM software for the 2022 Taos (24HV) and for Jetta and Taos (24iR) that also prevents P2025 entries. Ford's 2014 code list marks it as a MIL code.
- What you may notice
- Check engine lamp on
- Fuel nozzle shuts off repeatedly when filling the tank
- EVAP readiness incomplete
- Likely causes
- LikelyWater or ice in canister and NVLD switch (Audi A6/A7 3.0)
- PossibleECM software setting the code falsely (VW Jetta/Taos 2022)
- RareTemperature sensor drifted or slow to respond
- 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: €0 – €700
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.