'95 Altima will crank but won't start

On my 1995 Altima it did shortly from taking off from a stoplight. Just stalled out. Shortly after it started for a bit, was running roughly and I had to tap on gas a lot to keep it running, then when j tried to take off, it stalled out and died again.

I have not installed the knock sensor I currently had right now. Got it, just hasn't got it in in time. But so far I have used a fuel pressure gauge tester and tested the fuel pump with the new fuel filter on it…. good pressure.

Also have replaced the distributor cap and rotor. Tested the coil with a spark plug and I'm getting spark.

It's cranking great but just doesn't wanna start. Try to start and pedal to the floor it putters a bit like it wants to but doesnt.

Help anyone?

Thanks Derek.