P0453: EVAP system pressure sensor circuit high input
You can keep driving. Get it checked when convenient.
Can I drive with P0453?
Yes, you can keep driving. Pressure sensor voltage stuck high (usually 5V open circuit); usually safe to drive for a short time, but get it checked to drive.
What does P0453 mean?
P0453 stands for Evaporative Emission Control System Pressure Sensor High Input.
Symptoms you may notice
- Steady check engine light with minimal drivability symptoms
- Normal engine power, idle, and acceleration
- Possible faint gasoline vapor smell near gas cap
How much does it cost to fix?
Repair costs for code P0453 depend on the specific underlying root cause, ranging from simple DIY checks to component replacement. The table below lists the most common causes and rough price ranges in USD:
- Open circuit / broken wire in FTP sensor harness
- Failed tank pressure sensor
- Broken sensor ground wire
- Corrosion in rear connector
What to do next
- Check ground continuity on the sensor connector pins.
- Check wiring harness running above the fuel tank for rodent bites.
- Replace the fuel tank pressure sensor.
Last updated: October 2026
Related codes
General guidance only, not a professional diagnosis. If the check-engine light is flashing, or the car is running rough, overheating or losing power, stop driving and get help.
About this code
Code P0453 occurs when the sensor output is stuck at 4.8 volts or higher, which usually means an open circuit or lost ground connection. It has no effect on vehicle performance, safety, or fuel consumption.