OBD-II code · Powertrain (generic)
P0453 Evaporative Emission System Pressure Sensor High Input
The fuel tank pressure sensor signal is above the expected maximum voltage, typical of a short to supply or a sensor that has failed high.
Is it safe to drive with P0453?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyTank pressure sensor failed (high)
Symptoms
- Check engine light on
- Possible smell of fuel near tank or engine bay
- Failed emissions inspection
- Loose-cap warning may appear
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2.5 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Fuel Tank Pressure Sensor, Sensor Wiring
Related codes
- P0451Evaporative Emission System Pressure Sensor Range/Performance
- P0450EVAP System Pressure Sensor/Switch A Circuit
- P0452Evaporative Emission System Pressure Sensor Low Input
- P0454EVAP System Pressure Sensor/Switch A Circuit Intermittent
- P0455Evaporative Emission System Leak Detected (Large Leak)
- P0456Evaporative Emission System Leak Detected (Very Small Leak)
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.