Operation Section 1 ± 14 5. INJECTOR 5.1 Outline The 2004 and 2007 model year CRSs use G2 injectors. The construction and operational characteristics of the G2 injectors are identical to the conventional injector. The G2 injector injects fuel into the engine combustion chamber in accordance with signals from the engine ECU. As of the 2007 model year CRS, the injectors use a mutli-hole filter. The 2010 model year CRS uses G3 injectors. G3 injectors are compliant with a pressure of 200 MPa, and show improved responsiveness, as well as an increased resistance to foreign material adherence.