P0453 on Ford
Evaporative Emission Control System Pressure Sensor High Input
P0453 on Ford vehicles indicates evaporative emission control system pressure sensor high input. Au7o has documented this code across 1 Ford model — most commonly on Focus. P0453 is the opposite of P0452: the Evaporative Emission (EVAP) fuel-tank pressure sensor is reporting a signal that is too high — above the expected range. This sensor reads tank pressure/vacuum so the computer can detect fuel-vapor leaks and control venting and purging. A constantly high signal tells the PCM the data isn't believable, usually from a sensor fault or a wiring short to voltage. It generally doesn't affect how the car drives but illuminates the check engine light and will cause an emissions failure. Typical repair costs on Ford range from $80 to $250, depending on the specific model and root cause.
Common Causes of P0453
- •Failed fuel tank pressure (FTP) sensor
- •Short to voltage in the sensor signal wiring
- •Open or high-resistance sensor ground circuit
- •Corroded or damaged sensor connector
- •Damaged or chafed wiring in the EVAP sensor harness
- •Faulty PCM (rare)
P0453 on Ford by Model
Ford Focus(1 issue)
- Canister Purge Valve Failure Causing Rough Idle and Stalling2012-2018
The 2012-2018 Ford Focus with the 2.0L GDI engine experiences frequent canister purge valve (CPV) failures that cause rough idle, stalling, difficulty starting (especially after refueling), and fuel-related DTCs. The purge valve sticks open, allowing fuel vapors to flood the intake manifold at inappropriate times. This is separate from the carbon buildup issue and is one of the most commonly replaced components on the 2012-2018 Focus. Ford issued TSBs addressing the issue and released updated purge valve designs. The problem affects both manual and automatic (PowerShift) transmission models. Focus Fanatics Forum documents this as one of the top five most-replaced parts on the Mk3 Focus.
Looking for P0453 on a different make?
View P0453 across all makes →Frequently Asked Questions
What does P0453 mean on Ford?▼
P0453 stands for "Evaporative Emission Control System Pressure Sensor High Input." P0453 is the opposite of P0452: the Evaporative Emission (EVAP) fuel-tank pressure sensor is reporting a signal that is too high — above the expected range. This sensor reads tank pressure/vacuum so the computer can detect fuel-vapor leaks and control venting and purging. A constantly high signal tells the PCM the data isn't believable, usually from a sensor fault or a wiring short to voltage. It generally doesn't affect how the car drives but illuminates the check engine light and will cause an emissions failure. On Ford specifically, this code is documented across 1 model.
What causes P0453 on Ford vehicles?▼
Common causes on Ford: Failed fuel tank pressure (FTP) sensor, Short to voltage in the sensor signal wiring, Open or high-resistance sensor ground circuit, Corroded or damaged sensor connector, Damaged or chafed wiring in the EVAP sensor harness. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0453 on a Ford?▼
Repair costs on Ford range from $80 to $250, depending on the specific model and root cause.
Which Ford models have P0453 documented?▼
Au7o has documented P0453 on 1 Ford model: Focus.