Thread: Dtc p0440

The definition to the code from "http://www.obd-codes.com" with a spelling error corrected is:
This indicates that a part of the EVAP control system is no longer functioning correctly. The EVAP system consists of many parts, including (but not limited to) the gas cap, fuel lines, carbon canister, purge valve, and other hoses. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.

It seems there is a leak somewhere. As with filling up the gas tank, I have had that problem at certain gas stations. I just insert the pump nozzle in on a different angle and it works fine.