(c) Pull out the 6 injectors from the delivery pipe. (d) California: Remove the 2 O–rings, insulator and grommet from each injector. (e) Except California: Remove the O–ring and grommet from each injector. INJECTORS INSPECTION 1. INSPECT INJECTOR INJECTION CAUTION: Keep injector clear of sparks during the test. SST (Hose) SST (Union) Fuel Pressure Regulator SST (Union) SST (Union) SST (Union) Injector SST (Clamp) Fuel Filter (On Vehicle) Fuel Return Hose (On Vehicle) P12627 Fuel Inlet Hose P12558 (a) Remove the union bolt and 2 gaskets, and disconnect the fuel inlet hose from the fuel filter outlet.