i need mechanic advise pls help
 

I recently bought a 96 e320. at first it started fine. after doing a lot of research I believe my car is in what I think is "limp mode" anyways after kind of getting an idea of what's wrong. now the car just wont start, now it just starts and then dies out immediately? I changed my fuel filter (previous one was horrible) and fuel pump turns on. I checked my pressure on the fuel rail by the motor and it comes shooting out, so I know the fuel pump is pressurized. but I have no fuel coming out of the fuel pressure regulator (the nipple)


my question is, is it more likely to be a bad fuel pressure regulator or my crank position sensor (cps)


please, any and all advice will be highly appreciated


-Kolby