Skip to main content
Diagnose/P0453
P0453Low SeverityEmissions

Evaporative Emission System Pressure Sensor High Input

What This Means

The fuel tank pressure sensor is reading higher voltage than expected, which may indicate a shorted sensor or pressurized fuel tank.

Common Symptoms

  • Check engine light on
  • Possible fuel smell
  • No driveability issues
  • Failed emissions test

Common Causes

  • Loose or damaged gas cap
  • Cracked EVAP hose
  • Faulty purge/vent valve
  • Charcoal canister issue
  • Fuel tank pressure sensor failure

Estimated Repair Cost

$50 – $400
Parts and labor (varies by vehicle and location)
Difficulty:Moderate

Need This Fixed?

Find certified mechanics near you who can diagnose and repair P0453.

Find a Shop Near You
Search Another Code

For informational purposes only. Diagnostic trouble codes are starting points for diagnosis, not definitive answers. Always consult a certified mechanic for proper diagnosis and repair. Estimated costs vary by vehicle, location, and shop rates.