The first thing you want to do is check the pressure that the pump/regulator is set at. It will probably be normal but you gotta check.
If it still does it remove the injectors, run 12v to the two poles in the part where the harness plugs in which will pop the injector wide open and then clean it out with carb clean. You can check to see if it worked by putting any kind of hose you can stretch over the injector inlet and fill it with fuel. If the injector doesn’t leak you are good to go. If you want to be doubly sure you can blow as hard as you can into the hose which will pressurize the fuel going into the injector. And if you want to get crazy anal you can set your compressor at 45psi and use a air gun to pressurize the fuel in the hose and see if the injector leaks then.
If none of that solves the problem you may have a ECU issue that is causing the injectors to hang open.
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