car wont idle

[benj1159]

Hello all, i have a 1992 240sx ka24de and it wont idle correctly
i just did a full rebuild and i removed all of the emissions parts
i start it up and the rpm jumps up to 4k and then it drops down and then it stalls, i have no idea what is wrong with it. please help me

[herbieS13]

could be a number of things, like a vacuum leak, Iacv, temp sensor

[NIZzS13]

By any chance did you swap the intake manifold? Give a little more detail about what you removed and did you block off the ports ect...