P0453: Evaporative Emission Control System Pressure Sensor High Input
2 vehicles · 2 makes · $80-$250 repair
Most Reported On
P0453 is an OBD-II diagnostic trouble code meaning “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. This code is most commonly reported on 2012-2018 Ford Focus, and 2002-2003 Pontiac Bonneville, with repair costs ranging from $80 to $250.
Common Causes
Typical Repair Cost
Based on 2 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose P0453, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
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FAQ
What does P0453 mean?
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.
What are the most common causes of P0453?
The most common causes of P0453 are: 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). The specific cause varies by vehicle.
How much does it cost to fix P0453?
Repair costs for P0453 range from $80 to $250, depending on the vehicle and root cause.
Which vehicles are affected by P0453?
Au7o has documented P0453 across 2 vehicle models from 2 manufacturers: Ford, Pontiac.
Sources (6)
- ForumReddit r/MechanicAdvice - 2014 Ford Focus Stalling and Rough Idle Due to Canister Purge Valve
- NHTSANHTSA Recall Campaign 03V238000 — Fuel Tank Pressure Sensor (official API record)
- RecallPontiac Bonneville 2003 Fuel System: Storage Tank Assembly Recall 03V238000 — Justia
- RecallPontiac Recall 03038: GM/Fuel Tank Pressure Sensor — 2002 Bonneville — CarComplaints
- RecallPontiac Recall 03038: GM/Fuel Tank Pressure Sensor — 2003 Bonneville — CarComplaints
- articlePontiac Bonneville Recalls — Cars.com (lists 03V238 SSEi supercharged V6)
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.