| 摘要 |
Disclosed is a method for diagnosing a clogging of an injector 12D in an internal combustion engine 50 equipped with a fuel rail 20 and with a plurality of fuel injectors. The method comprises the steps of determining a value of a pressure drop in the fuel rail 20 due to a quantity of fuel injected by a tested injector, and diagnosing the clogging of the tested injector if the determined pressure drop value is lower than a threshold value of this pressure drop. The threshold value corresponds to the expected pressure drop that would arise if the fuel injector was not blocked. Also disclosed is an internal combustion engine using the method and a computer program for implementing the invention, a program product containing the program, an ECU loaded with the program and an electromagnetic signal representing the program. |
