240sx idle problem?

[DennisS]

What' s going on guys. Ive had this problem for over a week now and can' t seem to find the issue, hopefully someone can.

A little background on car: 1992 240sx. Knocked a rod so i pulled the motor out and put in a obd2 s14 motor. Its still got the s13 trans on the new motor. I did all the basics, distributor, rewired aac, set the timing at tdc.
First thing i noticed was the two extra plugs on the top of the intake manifold and the vacuum lines weren't the same. I connected the vac lines as seen in the vid. I deleted the egr, and the the two plugs at the back of the block aren't plugged in. (No where to plug in) When i set the timing i didn't mess with the timing chain.. I set the car at tdc and then plugged the distributor in at piston 1. The car starts and jumps to 1200 rpms, then quickly dies. I have a feeling that its a vacuum leak or a sensor but can't seem to find it.

Any help would be appreciated