Method for detection of injection equipment failure in a diesel engine having 2 to n fuel injectors per cylinder and an injection controller capable of applying said method, wherein, upon an abnormality of an operation parameter of the engine, the injectors in a cylinder are operated under sequential control in at least two sets of 1 to n-1 injectors and an operated set includes the injector having a failure, if the observed operation parameter for the operated set differs distinctively from its normal state, and - by comparison - concluding therefrom the injector having a failure and indicating it.
