Fuel Injector
WARNING: This page is about a different car, the 2003 Suzuki Vitara. However, it is still accessible from the selected car via links, so may be relevant.
There are 4 injectors (one for each cylinder), each of which is installed between the intake manifold (or cylinder head) and delivery pipe.
It is an electromagnetic type injection nozzle which injects fuel into the intake port of the cylinder head according to the signal from ECM (PCM).