Injector module

1. 1The ornamental design for an injector module as shown and described.

FIG. 1 is a top, isometric view of an injector module;
FIG. 2 is a right side elevational view thereof;
FIG. 3 is a left side elevational view thereof;
FIG. 4 is a front elevational view thereof;
FIG. 5 is a rear elevational view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The evenly broken lines depict portions of the injector module which form no part of the claimed design. The dash dot lines immediately adjacent to the claimed areas in the views represent the boundaries of the claimed design. None of the broken lines form any part of the claimed design.