1989 rx7 fc. Not wanting to start. Went through all the normal stuff. De-flood, check for spark, check for fuel coming through lines, compression check, etc. Narrowed it down to fuel. Pulled off the injectors and ran some carb cleaner through them. All 4 are working. Put it all back together and it ran for about 4 seconds. Then, it would not start again. Drained the fuel tank and put new fuel in. Primed the fuel system, still won’t start. Starts up every time on starting fluid but dies out. Ideas? Have a fuel pressure gauge in the mail, but have not been able to get a pressure reading yet. Can confirm it is getting fuel to the rail though. Ideas??