How do you set the diesel pump timing on a 94 frontera 2.3?

To set the diesel pump timing on a 1994 Frontera 2.3, first ensure the engine is at top dead center (TDC) on the compression stroke for cylinder one. Then, remove the timing cover to access the injection pump. Align the timing mark on the pump with the mark on the engine block, and make any necessary adjustments using the pump's mounting bolts. Finally, recheck the timing and secure everything back in place before starting the engine.