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EmissionsSeverity Low: usually safe to drive

P0453Evaporative Emission System Pressure Sensor/Switch "A" High

What it means

The fuel tank pressure sensor signal is too high.

Symptoms

  • Check engine light
  • Possibly a fuel smell
  • Usually no change in how the car drives

Common causes

  • Open signal or ground
  • Signal shorted to voltage
  • Faulty sensor

What to check first

  1. Check the sensor ground and signal
  2. Unplug the sensor and watch live data
  3. Inspect the harness near the tank
Can I drive with P0453? Usually yes. P0453 rarely affects how the car drives, but it keeps the check engine light on and can fail an emissions test.

Generic OBD-II meaning. Manufacturer-specific meanings and checks can differ; always check the service information for the car.

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P0453: questions and answers

What does P0453 mean?

P0453: Evaporative Emission System Pressure Sensor/Switch "A" High. The fuel tank pressure sensor signal is too high.

What are the symptoms of P0453?

Check engine light. Possibly a fuel smell. Usually no change in how the car drives.

What causes P0453?

Open signal or ground. Signal shorted to voltage. Faulty sensor.

How do you diagnose P0453?

1. Check the sensor ground and signal 2. Unplug the sensor and watch live data 3. Inspect the harness near the tank

Can I drive with P0453?

Usually yes. P0453 rarely affects how the car drives, but it keeps the check engine light on and can fail an emissions test.