rb25 into s14- starts but wont keep running

[RB4:25]

So I just finished up a rb25 (2nd gen) swap to '95 s14 and we go to start it and it will fire and run for a few seconds but then always cuts out and dies. pulled all the injectors and coil packs and am getting spark and wastespark and im getting fuel. anyone know if these motors have some sort of auto shutdown relay if they arent getting the correct signal or voltage to a certain wire on the ecu? i did also have the problem that the key on the cam for the cam position sensor was broken off and I had to replace the cam with one from another stock motor, so possibly timing? anyone have any ideas

[Arrow]

it almost sounds as though your tps might not be adjusted properly or is not working. You also would probably want to check your timing, though I don't know why it would shut off once it started due to timing - in less it would only shut off when you try to rev the engine... either way, I'd say to check your tps and timing for right now at least...