Fuel Pressure Release
WARNING: This page is about a different car, the 2000 Infiniti Q45 and 2000 Infiniti G20. However, it is still accessible from the selected car via links, so may be relevant.
Remove fuel pump fuse. Start engine and allow to run until engine stalls due to lack of fuel. Crank engine 2-3 more times to verify all pressure has dissipated.