EVAP Pressure Sensor Range/Performance
The fuel tank pressure sensor is reading outside its expected range.
Informational only. Consult a qualified mechanic.
- Faulty fuel tank pressure sensor
- Wiring issue
- EVAP system leak
Replace fuel tank pressure sensor.
What does P0451 mean?
The P0451 OBD-II diagnostic trouble code (DTC) indicates: evap pressure sensor range/performance. This is a low-severity powertrain code that your vehicle's onboard diagnostics system triggers when the fuel tank pressure sensor is reading outside its expected range. If your check engine light is on with this code, the vehicle is generally safe to drive, but you should have it inspected soon.
Use Your Service Book to log this diagnostic trouble code to your vehicle's service history, track repairs, and get maintenance reminders — all for free.
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