PowertrainP0455
InfoSeverity: Info - usually nothing urgent
Evaporative Emission Control System Leak Detected (Large Leak)
Key terms: EVAP: the system that traps fuel vapour · SAE J2012: the standard generic code list · Powertrain: engine, transmission and emissions
1What it means in plain English
The fuel vapour (EVAP) system has a large leak, so fuel vapour is escaping into the air. A loose or faulty fuel cap is the most common cause.
2Common causes
- Loose, missing, or faulty fuel cap
- Disconnected or split EVAP hose
- Faulty purge or vent valve
- Cracked charcoal canister
- Fuel tank or filler neck leak
3Can I drive?
Safe to drive; this only affects fuel vapour emissions, and you may notice a fuel smell. Tighten the fuel cap first, then have it checked if the light returns.
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 41
| Brand | Code | Description | System |
|---|---|---|---|
| Ashok Leyland CV | P0455 | Evaporative Emission Control System Leak Detected (Large Leak) SAE | Powertrain |
| BAIC Motor | P0455 | Evaporative Emission System Leak Detected Brand | Powertrain |
| Mercedes-Benz | P0455 | Evaporative Emission Control System Leak Detected (Large Leak) SAE | Powertrain |
| BMW | P0455 | Major leak Brand | Powertrain |
| BYD | P0455 | EVAP. emission Brand | Powertrain |
| Chery | P0455 | EVAP. emission Brand | Powertrain |
| Chrysler | P0455 | Evaporative Emission (EVAP) system large leak Brand | Powertrain |
| Daewoo | P0455 | Evaporative Emission System Leak Detected Brand | Powertrain |
| DFFS | P0455 | Serious leak in evaporation system Brand | Powertrain |
| DFFX | P0455 | EVAP. emission Brand | Powertrain |
| DFXK | P0455 | EVAP System: Large Leak Detected Brand | Powertrain |
| EOBD | P0455 | EVAP system leak detected - large leak Brand | Powertrain |
| Ford | P0455 | Troubleshooting DTC Brand | Powertrain |
| Geely | P0455 | EVAP. emission Brand | Powertrain |
| GM | P0455 | Evaporative Emission Control System Leak Detected (Large Leak) SAE | Powertrain |
| Great Wall | P0455 | EVAP. emission Brand | Powertrain |
| Hafei | P0455 | EVAP. emission Brand | Powertrain |
| Holden | P0455 | Evaporative Emission (EVAP) System Large Leak Detected Brand | Powertrain |
| Honda | P0455 | A/C perf updates Brand | Powertrain |
| Hyundai | P0455 | Evaporative Emission Control System Leak Detected (Large Leak) SAE | Powertrain |
| Isuzu | P0455 | Evaporative Emission Control System Leak Detected (Large Leak) SAE | Powertrain |
| Land Rover | P0455 | Evaporative Emission Control System Leak Detected (Large Leak) SAE | Powertrain |
| Maserati | P0455 | Evaporative Emission (EVAP) system leak detected - large leakage Brand | Powertrain |
| Mazda | P0455 | Troubleshooting DTC Brand | Powertrain |
| Mitsubishi | P0455 | EVAP. emission Brand | Powertrain |
| Nissan | P0455 | Evaporative Emission (EVAP) gross leakage Brand | Powertrain |
| Opel | P0455 | Evaporative Emission Control System Leak Detected (Large Leak) SAE | Powertrain |
| Peugeot | P0455 | Evaporative Emission Control System Leak Detected (Large Leak) SAE | Powertrain |
| Porsche | P0455 | Evaporative Emission Control System Leak Detected (Large Leak) SAE | Powertrain |
| Proton | P0455 | EVAP. emission Brand | Powertrain |
| Saab | P0455 | Evaporative Emission Control System Leak Detected (Large Leak) SAE | Powertrain |
| MG (SAIC) | P0455 | Evaporative Emission System Leak Detected Brand | Powertrain |
| Smart | P0455 | Evaporative Emission Control System Leak Detected (Large Leak) SAE | Powertrain |
| Sprinter | P0455 | Evaporative Emission Control System Leak Detected (Large Leak) SAE | Powertrain |
| SsangYong | P0455 | EVAP. emission system - leak detected(large leak) Brand | Powertrain |
| Subaru | P0455 | Evaporative Emission Control System Leak Detected (Large Leak) SAE | Powertrain |
| Suzuki | P0455 | Evaporative emission control system leak detected (Gross leak) Brand | Powertrain |
| SWM Motor | P0455 | Evaporation system leakage Brand | Powertrain |
| Tata | P0455 | Evaporative Emission System Leak Detected Brand | Powertrain |
| Toyota | P0455 | Fuel evaporation system large leakage Brand | Powertrain |
| Volkswagen | P0455 | EVAP system: large leak detected 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 2
These 7-character codes are manufacturer-specific variants of P0455 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Nissan | P045500 | Check if the fault code is present Brand | Powertrain |
| Volkswagen | P045500 | Large leak detected in tank ventilation system Brand | Powertrain |
6Related codes
Browse Pxxx codes or P045xx codes.