The injector relay on a Ford F-250 Super Duty 6.0L Power Stroke diesel is
not a single, easily identifiable relay like in some other vehicles. The 6.0L's fuel injector control is managed by the Powertrain Control Module (PCM) and doesn't use a dedicated relay in the traditional sense. The PCM directly controls the injectors via a complex system involving the high-pressure oil system and the wiring harness.
Therefore, there's no single "injector relay" to locate. Any troubleshooting related to injector function needs to involve diagnostic tools that can communicate with the PCM and assess the injector circuits.
