rpm prblem

hi i just put a new engine in my 96 camry with 2.0 i use to had 2.2 well car works fine..but i have problem with RPM when i take off...or give lil gas padddle..my rpm goes way up hight over 20000 and vibrates the car for a while..after car pick up speed it gets normal..and how i do i incres my car idel...i wana rpm to lil below..10000 in Park rite now it stay around 5000. is there anyways to adjust RPM from engine??

ECM determines your idle speed. Get ODBII codes from computer. The sensors in your 2.0 might not be compatible with those used in the 2.2.