A method for controlling an internal combustion engine arrangement, said internal combustion engine arrangement comprising - a combustion cylinder housing a reciprocating piston movable between a bottom dead center and a top dead center within the combustion cylinder; - an inlet valve operable between an open position and a closed position for controlling the flow of air into said combustion cylinder; - a controllable inlet cam shaft connected to the inlet valve, said inlet cam shaft being arranged to, during normal operation of the internal combustion engine arrangement, position the inlet valve from the closed position to the open position when the piston reaches the top dead center, and to position the inlet valve in the closed position at a predetermined crank angle degree before the piston reaches the bottom dead center; and - a cam phaser connected to the inlet cam shaft, said cam phaser being arranged for variably controlling valve timing of the inlet valve, the method comprising the steps of: - receiving a signal indicative of an operating mode of the internal combustion engine arrangement; - determining a required volumetric efficiency of the combustion cylinder for operating the internal combustion engine arrangement in said operating mode; and if the required volumetric efficiency is higher than a volumetric efficiency of the combustion cylinder during normal operation of the internal combustion engine arrangement: - controlling, using the cam phaser connected to the inlet cam shaft to open the inlet valve at the same number of crank angle degrees from the top dead center as the number of crank angle degrees from the bottom dead center when operating the internal combustion engine arrangement during normal operation, and to maintain the inlet valve in the open position until the piston reaches the bottom dead center. - a combustion cylinder housing a reciprocating piston movable between a bottom dead center and a top dead center within the combustion cylinder; - an inlet valve operable between an open position and a closed position for controlling the flow of air into said combustion cylinder; - a controllable inlet cam shaft connected to the inlet valve, said inlet cam shaft being arranged to, during normal operation of the internal combustion engine arrangement, position the inlet valve from the closed position to the open position when the piston reaches the top dead center, and to position the inlet valve in the closed position at a predetermined crank angle degree before the piston reaches the bottom dead center; and - a cam phaser connected to the inlet cam shaft, said cam phaser being arranged for variably controlling valve timing of the inlet valve, the method comprising the steps of: - receiving a signal indicative of an operating mode of the internal combustion engine arrangement; - determining a required volumetric efficiency of the combustion cylinder for operating the internal combustion engine arrangement in said operating mode; and if the required volumetric efficiency is higher than a volumetric efficiency of the combustion cylinder during normal operation of the internal combustion engine arrangement: - controlling, using the cam phaser connected to the inlet cam shaft to open the inlet valve at the same number of crank angle degrees from the top dead center as the number of crank angle degrees from the bottom dead center when operating the internal combustion engine arrangement during normal operation, and to maintain the inlet valve in the open position until the piston reaches the bottom dead center.