Evaporative Emission System Fuel Vapor Temperature Sensor Circuit Range/Performance
The P2025 code means the vehicle's onboard diagnostic system has detected: Evaporative Emission System Fuel Vapor Temperature Sensor Circuit Range/Performance. This is a low severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- moderate
- Estimated cost
- $100 - $300 (parts and labor)
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Common Symptoms
- Check Engine Light illuminated
- No noticeable driving symptoms
- EVAP monitor will not complete
- Possible emissions test failure
- Slight fuel odor in rare cases
Probable Causes (Ranked by Likelihood)
- Fuel vapor temperature sensor reading out of range Very High
- Contaminated or degraded sensor High
- Intermittent wiring connection Moderate
- EVAP canister partially clogged Moderate
- PCM software issue Low
Frequently Asked Questions
What does P2025 mean?
P2025 means the fuel vapor temperature sensor in the EVAP system is reading values outside the expected range, indicating the sensor may be degraded or have a wiring issue.
Can I drive with a P2025 code?
Yes, you can drive normally. This code does not affect engine performance but will cause an emissions test failure.
How much does it cost to fix P2025?
Estimated repair costs are $100 to $300 for sensor replacement or wiring repair.
Mechanics Guide Step-by-step diagnosis
Step-by-Step Diagnostic Procedure
-
Read freeze frame data and confirm P2025
-
Compare fuel vapor temperature sensor reading to ambient temperature at cold start
-
Inspect sensor for contamination or physical damage
-
Check wiring for intermittent connections
Sources 1
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines the generic OBD-II code ranges)
Commonly Affected Vehicles
- 2011-2019 Chevrolet Silverado 2500 6.6L Duramax
- 2009-2015 Volkswagen Jetta 2.0L TDI
- 2012-2018 BMW 328d 2.0L Diesel
- 2010-2016 Mercedes-Benz ML350 3.0L BlueTEC
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