PO455

The P0455 code in the OBD-II system refers to a "Large Evaporative Emissions Leak." It indicates that there is a significant leak in the vehicle's evaporative emissions control system.

The evaporative emissions control system prevents fuel vapors from escaping into the atmosphere. A large leak can occur due to various reasons, such as a loose or damaged gas cap, a cracked or disconnected vacuum hose, a faulty purge valve, or a leak in the fuel tank or fuel system.