Swapped in a good PCM, still issues. Checked my fuel pressure. 42 PSI off and at idle. During the stumble and hesitation, fuel pressure takes a hike up to about 46-50 PSI, then once through the stutter drops down to about 38 PSI. Is this normal???

How do I go about checking my injectors to make sure they're all fine???

 

If the fuel pressure is the same with the key turned on, engine off and when the car is at idle that could be a problem. For my 97 it was supposed to be 41-47psi with key on, then drop between 3-10psi at idle. Those numbers may vary for a 93 since I know they are somewhat unique to 94-97's. It might be a bad regulator if its not dropping right away after starting and if it's stumbling and spiking like that. You can check the injectors with an auto stethescope. Listen to each one and they should make a rapid ticking sound if they are working properly, it's pretty easy to hear them clearly working with one. I replaced my fuel pressure regulator recently (and pump) since it was showing low readings in both areas and I was having stumbling problems. My problem turned out to be caused mainly by a torn plug wire but I think some of it had to do with low fuel pressure also. fwiw my car is running stronger than I have ever seen it since fixing those three things.

 

Thanks for the info. Guess I'll have to pick up a stethoscope. I"m starting another post with some more info. Thanks!