P0454 OBD-II: Evaporative Emission System Pressure Sensor/Switch Intermittent
P0454 Severity
Will P0454 go away on its own?
Once the vehicle's onboard system no longer detects the issue, most codes will disappear on their own. If your vehicle still has this code, however, it should be properly diagnosed to avoid a more serious problem.
For a proper diagnosis, RepairPal Certified shops have the equipment, tools, and expertise.
Moderate severity codes might not threaten the vehicle's safety or functionality immediately, but you should still get it diagnosed within a reasonable time frame to keep your car running well.
What causes OBD-II fault code P0454?
The evaporative control (EVAP) system captures any fuel vapors from the fuel tank and sends them through the vehicle's intake to be burned in the normal combustion process. The EVAP Pressure Sensor/Switch tells the engine control module (PCM) how much pressure or vacuum is in the fuel tank so the rest of the EVAP system to act accordingly. When the PCM detects an inaccurate signal from the pressure sensor, it will set code P0454.
Need a P0454 diagnosis? Trust our experts.
Tuffy Tire & Auto Service Center - Grandview
Excite Auto Repair & Towing
All In Auto Service
Tuffy Tire & Auto Service - Grove City
What Does P0454 Code Mean?
OBD-II Code P0454 is defined as a Evaporative Emission System Pressure Sensor/Switch Intermittent
The evaporative control (EVAP) system captures any fuel vapors from the fuel tank and sends them through the vehicle's intake to be burned in the normal combustion process. The EVAP Pressure Sensor/Switch tells the engine control module (PCM) how much pressure or vacuum is in the fuel tank so the rest of the EVAP system to act accordingly. When the PCM detects an inaccurate signal from the pressure sensor, it will set code P0454.
Common Problems That Trigger the P0454 Code
- Fuel tank pressure sensor failure
- Powertrain Control Module (PCM) failure
- Wiring issue
Common Repairs Needed for the P0454 Code
Ask our experts about P0454.
RepairPal Car Genius™ is a free resource for vehicle owners seeking advice on maintenance, auto repair, shop inquiries, estimates, and finding a trustworthy repair shop in your area.
Call us at 877-913-1554
Available 9am – 6pm ET Monday through Friday