Still having problems with this car. Can someone tell me how to test the fuel pressure since there is not fitting on fuel rail to do it.

No fitting on Rail? Hmmm...Some one more familiar /manual with this car should chime in.
I have read this whole thread and I am hoping it gets better Dave. Lots of good info and parts are now installed.
I know on my 97 park ave I had rpm problems including a stumble and once I had cleaned the (IAC) Intake air control and ports and then started the car and continued to spray throttle body cleaner in at 1900 rpm things got better in a hurry. I shut car off and then cleaned both side of throttle plate and used q-tip on plate edges while holding throttle open, to remove as much carbon as possible, and to ensure a bit smoother operation.
Have you done a good tune up on this car ?-Fuel Filter, Air Filter, plugs & gap check etc? Hoping some of this may help & be applicable.
Luckily I have a friend with a smoke machine for finding hose leaks. I had a lean situation that was easily located to fix a cracked EVAC & other hoses on my wheels in quick order while on the lift. Now my PA purrs like a kitten with normal idle, smooth shifts. I did use platinum spark plugs too, which it really likes. In the spring I intend on removing the entire throttle body for cleaning as carbon sure builds up quick and I think regular service on throttle body should be done every 2 years anyways.
Best-o-luck I hope the stall problem gets solved....IAC clean effects the idle...

the problems with the crank sensor can also be caused by the wires to the crank sensor, i would make sure the connector is good, and tight and follow the wires up the engine. alot of people have had the wires momentarily short on the block

Still looking for some advice on how to test the fuel pressure since there'* no fitting on the fuel rail. Would like to be able to set it up so I can drive car with pressure gauge in sight so I can monitor pressure when car stalls out.

they have for the old tbi engines a adapter to put the gauge inline that came in the some kits, i imagine there must be something like that

Are you sure there is no fitting? You are looking for a Schraeder valve (just like is used to put air in your tires), probably with a black plastic cap on it.

With no test port, you have to disconnect the rubber fuel line from where it joins the metal fuel rail, and use an in-line fuel pressure tester.