help! Motor Change

I have a 93 eclipse with a blown 1.8 motor and I am looking at buying a 2.0 motor and i want to know if it will hook up to the same wiring harness as the 1.8 or do i have to change anything to make it fit.

the harness may work, the ECU definitely won't. Also, if you have an auto trans, it'll be majorly screwed up with a 2.0 bolted to it, with a manual you'll just end up with really short gears.