1995 Acura Integra Cranks while key is engaged; dies when r

To Whom It May Concern:

On a couple of occasions in the past few months, the car would not run after releasing the key. After 6-7 tries, it ran fine and I continued driving it. Last week, it died on me in the middle of the interstate and would not start. I towed it to a local auto parts store and began working on it. First, I replaced the fuel filter and after a few tries it started; I turned it off to ensure I had indeed corrected the problem but it would not start again. I then replaced the distributor cap/rotor set as it showed signs of severe wear; nothing. I had someone bang on the fuel tank with a rubber mallet while I cranked the engine - it started right away and ran very well for several minutes. So, I replaced the fuel pump since it is located in the fuel tank - no joy! I replaced the Ignition Control Module on this car last year and it carries a lifetime warranty on it. I was able to get a replacement from AZ at no charge and installed it - again, nothing. Next, I discovered from a local dealer that this vehicle has a main relay which controls both the ignition and power to the fuel pump (I have 0 psi at the fuel filter service bolt with the key on), so I replaced that relay - nothing again! I am at a loss and would very grateful for some sound advice this point. The Service Engine light has been illuminated since I bought the car thanks to a faulty ABS motor/pump which I have no intention of replacing so it is hard to say if this starting problem caused any codes. I have not had AZ read for codes yet though. Thank you for your time.