DEVICE AND METHOD FOR IDENTIFYING DEFECTS IN A FUEL INJECTION SYSTEM

摘要

The invention makes the identification of defects possible in a fuel injection system comprising a fuel accumulator (12), a continuously operating high-pressure pump (10) and a fuel pressure control valve (14). By evaluating the high-frequency portion of the fuel pressure course in the fuel accumulator (12), it can be indicated with a high probability which of the components are defective, whereby this is assisted, in particular, by additional evaluations performed during a diagnostic method.