Method and device for operating an internal combustion engine

A device comprising:

• a processor;
• and
• a memory storing a set of instructions, the set of instructions, when loaded and executed by the processor, causing the processor to:
• determine a respective torque output of each of at least two cylinders of an internal combustion engine resulting from a first amount of fuel injected into each of the at least two cylinders respective cylinder;
• determine a difference in the respective torque generated by each of the at least two cylinders;
• comparing the difference in the respective torque with a predetermined threshold value;
• if the determined difference exceeds the threshold value, injecting a second amount of fuel different from the first amount of fuel for at least one of the at least two cylinders based at least in part on the determined difference;
• determining a further torque output of the at least one of the at least two cylinders resulting from the injection of the second amount of fuel;
• determining whether the further torque output corresponds to the second amount of fuel;
• if the further torque output lies outside a predetermined tolerance range for a corresponding injection mass, setting an injection mass to be injected to the first amount of fuel;
• and
• changing the injection time in at least one of the at least two cylinders.