Hi guys, at a bit of a loss here, i have a 2002 honda accord 2.3L 4 cyl, i recently got an engine swap for another of the same motor, pulled straight from the donor car wich was bought at auction, i can start the car but it wont drive, idles about 600 ish rpms, if i push the gas pedal or open the throttle all the way it stalls, if i get the rpms to any consistent number the engine drop rpms and bounce back up. please if you know what i could check, let me know.

Things ive already changed:
Distributor
Spark plugs
Coils
IAC Valve
Throttle Body