What does code P0454 mean?
The EVAP pressure sensor signal is intermittent, causing unstable pressure readings.
OBD-II Code
P0454 — Evaporative Emission Control System Pressure Sensor Intermittent
The EVAP pressure sensor signal is intermittent, causing unstable pressure readings.
Common symptoms
- Intermittent check engine light
- fluctuating pressure data
Possible causes
- Loose or corroded connectors
- fuel tank vibration
- failing sensor
Initial recommendation
Secure connectors, inspect wiring harness routing and replace sensor if condition persists.
Safety notice
This information is for guidance only and does not replace a physical vehicle inspection or diagnosis by a qualified mechanic. If the vehicle has severe power loss, smoke, a fuel odor, overheating, brake or steering problems, or any unsafe behavior, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
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