To find it, you need to consult your owner's manual. This manual will have a diagram of both fuse boxes, clearly showing the location and amperage of each fuse and relay.
Without the manual, searching blindly could be frustrating and time-consuming. The fuse box diagrams are typically labeled with what each fuse controls. Look for labels mentioning "fuel pump," "electric fuel pump," "injectors," or similar terminology.
Important safety note: Always disconnect the negative battery terminal before working with fuses or electrical components in your vehicle.