P2025 code meaning
EVAP Fuel Vapor Temperature Sensor Performance
Powertrain system Generic code P20xx codes Check engine light
What P2025 means
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.
P2025 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.5 to 3 hours
- Clears after repairAfter a drive cycle
Symptoms of P2025
- Check engine lamp on
- Fuel nozzle shuts off repeatedly when filling the tank
- EVAP readiness incomplete
Common causes of P2025
- Most likelyWater or ice in canister and NVLD switch (Audi A6/A7 3.0)
- PossibleECM software setting the code falsely (VW Jetta/Taos 2022)
- Less likelyTemperature sensor drifted or slow to respond
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
EVAP fuel vapor temp sensorEVAP canisterEVAP leak detection module
What each part of P2025 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 0 | Area: fuel and air metering and auxiliary emission controls. |
| 25 | The exact fault in that area. |
What to do next
- Note P2025 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2025
What does P2025 mean?
P2025 means "EVAP Fuel Vapor Temperature Sensor Performance". P2025 means the vapor temperature reading is electrically valid but does not make sense against other inputs or over time. It is a generic code, so it means the same on every make.
Is it safe to drive with P2025?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P2025 fail an emissions test?
Yes, it can. P2025 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P2025 to fix?
Difficulty: medium. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will P2025 clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.