1992 Dodge Daytona stalls

My 1992 Dodge Daytona will crank and start but shuts down immediatley. It will do this over and over.
It was running fine when I parked it.
I replaced all of the relays. I bought an OBD1 code reader but no codes display. I cleared and tried again but still no codes. I hear the fuel pump come up to pressure at ignition on and when motor stalls.