To find the relevant fuse and relay:
1. Consult your owner's manual: This is the best place to start. It will have a diagram of your fuse box and list what each fuse protects. Look for terms like "fuel pump," "EFI," or "engine control."
2. Check the underhood fuse box: This is usually located in the engine compartment, often near the battery. The cover will have a diagram showing the fuse layout.
3. Look for the fuel pump relay: This is usually a larger relay than others. It might be labeled, but often isn't. If your manual doesn't have a clear fuel pump fuse, the relay itself will be protected by a fuse somewhere nearby.
Important Safety Note: Disconnecting the fuel pump fuse is a serious undertaking. The car will not start, and there might be residual fuel pressure in the system. It should only be done by someone familiar with automotive systems. Never work on your car's fuel system near an open flame or sparks. Consider professional assistance if you aren't comfortable working with this system.