swap motors

I took a 1.9 dual over head cam motor out of a SL2 & put it in a SC1 that had a 1.9 single over head cam & I'm have some problems can anyone help me with the problems .

What problems are you having? Probably some sensor and computer problems. You may need to yank the computer out of the other saturn. Maybe even switch a couple of sensors.

what years are we talking? for one if the pcm wasnt swapped, theres a problem. depending on the years, you could be in need of an entirely new harness. some components might need replaced, but need to know what year the both the motors are.