METHOD OF COMPENSATING FUEL FOR EACH CYLINDER OF AN ENGINE DURING PURGING

A method of compensating fuel for each cylinder of an engine during purging may include, compensating a fuel injection time for each cylinder depending on an amount of intake air for each cylinder, an injection pressure of the injector, and an internal pressure of a combustion chamber of the engine; pressurizing a vaporized gas adsorbed into a canister and injecting the pressurized vaporized gas into the intake pipe by operating an active purge pump; and estimating an amount of vaporized gas reaching each combustion chamber and converting the fuel injection time depending on the estimated amount of vaporized gas.