Fuel, especially ethanol, is injected in an internal combustion engine via at least one injection device into a combustion chamber, with the injection pressure of the fuel being temporarily increased during the starting phase of the internal combustion engine. For example, the techniques can be used to detect and identify a line of bearing to an IEEE 802. The display module includes a first connector connected to the first protrusion and a second connector connected to the second protrusion. The core is located in a position such that the light emitted from the light emitting element is incident on the core.