System for fixing an injector to the engine head of a vehicle, method for fixing the injector, and manufacturing method of the system

The present invention refers to a method for fixing an injector to the engine head of a vehicle. The injector (4) comprises two recesses (53) on the opposite sides, and the head comprises a first hole (43) for inserting the injector, and two threaded holes (24) that are lateral with respect to said first hole. The fixing system comprises two plates (21, 22) equipped with central hole (23), configured so that one of their borders (51) directly projects on a lower edge (52) of said recesses placed opposite to them, and so that their central hole (23) corresponds to a respective hole of said two lateral threaded holes (24) in order to be screwed on said head.