Pop the bleeder and cycle the pump until only pure fuel is coming out.
There is no need to bleed air from a fuel pump.
To bleed a Case 1594 injector pump, first, ensure the fuel tank is filled with clean diesel fuel. Next, locate the bleed screw on the injector pump, typically found on the top or side. Loosen the bleed screw slightly and manually pump the fuel lift pump until fuel starts to flow without air bubbles, then tighten the screw. Finally, crank the engine to ensure it starts smoothly and check for any leaks around the bleed screw.
If it is just one injector, it is a bad injector or a problem in the wiring harness or connector for that injector. If it is all of the injectors, it could be a fuse, the entire injector harness, a broken loose or unplugged connector on the injector harness, or the fuel pump or fuel pressure regulator.
it has throttle boddy
in the engine
The most common problem, when a 1990 Geo tracker floods out with gas, is a bad fuel injector. The injector might be leaking or injecting a steady stream of fuel
Fuel leak, or Fuel Injector stuck partially open.
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the harness could be bad on that injector chech to see if its firing and if it is then the injector is bad
you open all the injector lines at the injectors . Then pump the fuel pump primer on the fuel pump . fuel will flow out one or more of the injector line , close the injector line and roll the engine over until the next injector start to flow fuel and so on , why are you having problems
spark plug
Injectors will self bleed when vehicle is "cranking" provided system is working normaly. The pressure regulator will bypass all extra fuel and return to the fuel tank providing constant fuel supply to injector.