The fuel pump relay location on a 1992 Ford Mustang LX 2.3L is
inside the Powertrain Control Module (PCM), which is located under the dash on the driver's side. It's not a separate, easily accessible relay like in some other vehicles. You won't find a standalone relay labeled "fuel pump." The PCM controls the fuel pump.
Therefore, you can't just swap out a relay. Troubleshooting a fuel pump issue on this model usually involves checking the PCM's operation, fuses related to the fuel system, wiring, and possibly the fuel pump itself.
