You may not have sufficient fuel pressure. The 2.2 should have 41 to 47 psi and the 4.3 should have 60 to 66 psi.
i would check the wires, you might have a short to power which would keep the injectors open all the time.
Try checking fuel injector that is what the problem was with mine after checking everything else i replaced injector an fixes the problem
The fuel pressure regulator has one bolt holding it in place.l
Common problem have Solenoid replaced Usually the pressure regulator valve.
The pressure regulator is located on the pass side of the fuel rail. It has a snap ring on it and all you have to do is take the snap ring off and pull it out. The fuel pressure regulator on a 1995 Eagle Talon non-turbo is an integral part of the fuel rail and is replaced as a unit.
Fuel pressure regulator.
The regulator is in the engine computer not the alternator.
The pressure nozzle tip for the 4BC2 is a stainless steel injector tip that is found on some Subaru vehicles. The tip can be replaced with models that are made from brass or steel.
To determine if your water pressure regulator valve is leaking, check for any signs of water dripping or pooling around the valve. If you notice any leaks, it may indicate that the valve is not functioning properly and needs to be repaired or replaced.
Did you replace the fuel filter? It can also be a bad fuel pressure regulator.
The entire fuel pressure regulator has to be replaced. i was tolld by the dealer on my 95 Dakota with a v-8 that there are 2 filters in the fuel tank. that's all i know, i haven't tackled that part yet. They have a strainer on the bottom of the pump and a combination regulator/filter on top of the pump module. I recommend getting a new pressure regulator and adding an in line filter
The voltage regulator is attached to the vehicles alternator. It can be replaced as a separate unit.