Fastener driving tool

The invention relates to a fastener driving tool comprising a tank (5) for storing a fuel, in particular liquefied petroleum gas, a combustion chamber (2) connected to the tank (5), wherein the combustion chamber (2) has a movable piston for powering a driving plunger, and a metering device (4) arranged between the tank (5) and the combustion chamber (2) wherein a defined quantity of fuel can be transported by means of the metering device (4) from a metering space (12) into the combustion chamber (2), and wherein the metering device (4) comprises at least one electrically driven valve member (18) wherein the metering space can be cut off from the combustion chamber by the valve member (18), wherein the valve member (18) is constructed as a 3-way valve, in particular with two switching positions. (Figure 1)