PowertrainP0454
CautionSeverity: Caution - get it checked when you can
Evaporative Emission Control System Pressure Sensor Intermittent
Key terms: Catalytic converter: cleans the exhaust gases · EGR: exhaust gas recirculation, which cuts harmful gases · EVAP: the system that traps fuel vapour · Oxygen sensor: measures oxygen in the exhaust gas · SAE J2012: the standard generic code list · Powertrain: engine, transmission and emissions
1What it means in plain English
This range covers emissions control (EGR, EVAP, oxygen sensors and the catalytic converter), but some manufacturers also use P04 codes for oil-pressure, brake-fluid and coolant-level warnings.
2Common causes
- Clogged or faulty EGR valve
- EVAP system leak (hoses, canister, fuel cap)
- Faulty oxygen sensor
- Ageing catalytic converter
- Low oil, brake fluid or coolant (on some models)
- Wiring or connector fault
3Can I drive?
Do not assume this code is safe to drive. Check the description: if it names oil pressure, brake fluid, coolant, or a brake fault, stop safely and have it diagnosed before driving. Emissions-only codes (EGR, EVAP, catalyst) should still be checked before an emissions or roadworthiness inspection.
This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.
4Brand data 31
| Brand | Code | Description | System |
|---|---|---|---|
| Ashok Leyland CV | P0454 | Camshaft Position 'B' Sensor Circuit, Intermittent (Bank 1) Brand | Powertrain |
| BAIC Motor | P0454 | Fuel tank pressure sensor signal interference Brand | Powertrain |
| Mercedes-Benz | P0454 | Evaporative Emission Control System Pressure Sensor Intermittent SAE | Powertrain |
| BMW | P0454 | Evaporative Emission Contr. Syst. Press. Sensor Intermittent Brand | Powertrain |
| BYD | P0454 | Fuel tank pressure sensor signal sticking/oscillating fault Brand | Powertrain |
| Chery | P0454 | EVAP System Pressure Sensor: Signal Intermittent Brand | Powertrain |
| Daewoo | P0454 | Immobiliser Malfunction Brand | Powertrain |
| DFFS | P0454 | Fuel tank pressure sensor signal interference Brand | Powertrain |
| DFFX | P0454 | Fuel tank pressure sensor signal interference Brand | Powertrain |
| DFXK | P0454 | Fuel tank pressure sensor signal interference Brand | Powertrain |
| EOBD | P0454 | EVAP sistem, senzor/tipka tlaka 'A', prekinjen krog Brand | Powertrain |
| Geely | P0454 | Fuel Tank Pressure Sensor Signal Random Brand | Powertrain |
| GM | P0454 | Fuel tank pressure (FTP) sensor circuit intermittent Brand | Powertrain |
| Great Wall | P0454 | Evaporative Emission System Pressure Sensor/Switch Intermittent Brand | Powertrain |
| Hafei | P0454 | Evaporative Emission System Pressure Sensor/Switch Intermittent Brand | Powertrain |
| Holden | P0454 | Fuel Tank Pressure Sensor Circuit Intermittent Brand | Powertrain |
| Hyundai | P0454 | Evaporative Emission Control System Pressure Sensor Intermittent SAE | Powertrain |
| Isuzu | P0454 | Evaporative Emission Control System Pressure Sensor Intermittent SAE | Powertrain |
| Land Rover | P0454 | This code indicates fuel tank pressure signal out of range - Intermittent Brand | Powertrain |
| Mitsubishi | P0454 | EVAP. emission SNS. intermittent Brand | Powertrain |
| Opel | P0454 | Fuel tank pressure (FTP) sensor circuit intermittent Brand | Powertrain |
| Peugeot | P0454 | Evaporative Emission Control System Pressure Sensor Intermittent SAE | Powertrain |
| Porsche | P0454 | Drucksensor für Tanksystem - sig Brand | Powertrain |
| Proton | P0454 | EVAP. emission SNS. intermittent Brand | Powertrain |
| Saab | P0454 | Fuel Tank Pressure (FTP) Sensor Circuit Intermittent Brand | Powertrain |
| MG (SAIC) | P0454 | Evaporative Emission System Pressure Sensor/Switch Intermittent Brand | Powertrain |
| Smart | P0454 | Evaporative Emission Control System Pressure Sensor Intermittent SAE | Powertrain |
| Sprinter | P0454 | Evaporative Emission Control System Pressure Sensor Intermittent SAE | Powertrain |
| Tata | P0454 | Evaporative Emission System Pressure Sensor/Switch Intermittent Brand | Powertrain |
| Toyota | P0454 | Fuel tank pressure sensor signal interference Brand | Powertrain |
| Volkswagen | P0454 | EVAP System Pressure Sensor: Signal Intermittent Brand | Powertrain |
Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.
5Extended variant codes 1
These 7-character codes are manufacturer-specific variants of P0454 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| SsangYong | P045400 | EVAP. emission system - pressure sensor intermittent Brand | Powertrain |
6Related codes
Browse Pxxx codes or P045xx codes.