To remove the fuel injectors, start by relieving the fuel pressure and detaching the cable from the negative terminal of the battery. Then, remove the PCV hose and the assembly that retains the Vacuum Switching Valve (VSV) control solenoids on V6 models. Disconnect the fuel injector electrical connectors and fuel lines from the fuel rail, and remove the fuel rail mounting bolts. Finally, remove the fuel rail with the fuel injectors attached and the fuel injectors themselves. To install the fuel injectors, simply reverse the removal steps and tighten the fuel rail mounting bolts to the specified torque. If reusing the same injectors, replace the grommets and O-rings.