Feb 26, 2025 · The P0455 code means your vehicle has detected a large leak in the EVAP (Evaporative Emission Control) system, which is responsible for capturing and storing fuel vapors before they escape into the air. While this isn’t an issue that will leave you stranded, ignoring it can lead to wasted fuel, a persistent fuel smell, and increased emissions.

Any large leak in your evaporative emission control system, or EVAP system, can signal trouble code P0455. You may be wondering, how do I fix trouble code P0455? Learn more about this helpful emissions system and how you can restore your vehicle and remove this trouble code.

Mar 25, 2024 · The P0455 code means that the control module has detected a small leak in the Evaporative Emission (EVAP). A loose fuel tank filler cap is the most common cause that will trigger the P0455 code.

Diagnose and repair a vehicle trouble code p0455 which is EVAP emissions control system leak detected (no purge flow or large leak).

Dec 22, 2024 · A P0455 code indicates a gross leak in the evaporative emission control system, which can lead to increased emissions and decreased fuel efficiency. Common causes of a gross leak include a loose gas cap, damaged hoses, and a faulty charcoal canister.

Aug 22, 2022 · Finding out that your vehicle has diagnostic trouble code P0455 can result in a costly repair. In this article, we will look at what it takes to fix that fault code and what the mechanic sees with his or her scan tool.

Apr 27, 2024 · Fault code P0455 indicates that a large (gross) leak within the evaporative emissions system has been detected and noted by a vehicle’s operating software. Simply put, this DTC indicates that a vehicle’s EVAP system is compromised in one way or another, allowing fuel vapor to escape into the atmosphere.

Aug 26, 2024 · DTC P0455 indicates a large leak in the evaporative emission control (EVAP) system. Possible causes: faulty gas cap, defective charcoal canister, bad purge or vent valve, or damaged EVAP line. Cost: $20–$507, based on the trouble. P0455 is most likely to occur with Nissans, Chevys, and Toyotas.

P0455 is an OBD-II fault code that indicates a large leak in the evaporative emission control system (EVAP). This system is designed to prevent fuel vapors from escaping into the atmosphere.

Sep 13, 2024 · Error code P0455 is an OBD-II diagnostic trouble code that signifies a major leak detected in the evaporative emission control (EVAP) system.