Engine Error
P0453
Evaporative Emission System Pressure Sensor/Switch High
Severity
Low
Symptoms
Check engine light, strong fuel vapor smell
Common Causes
- Failed fuel tank pressure sensor
- Short to voltage in sensor wiring
- Broken sensor ground wire
- Overfilled gas tank
How to Fix
- 1 Replace fuel tank pressure (FTP) sensor
- 2 Check for pinched wires near gas tank
- 3 Verify ground connection for sensor
- 4 Avoid topping off gas tank during fill-ups
Estimated Repair Cost
USD
$80
–
$450
Wiring repair: $80 - $150; FTP sensor (requires dropping tank): $250 - $450