WARNING: This page is about a different car, the 2005 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Fuel Injector
Courtesy of DAIMLERCHRYSLER CORP.
1 - FUEL INJECTOR
2 - NOZZLE
3 - TOP (FUEL ENTRY)
An individual fuel injector (1) is used for each individual cylinder.