To clarify there are 4 different versions/revisions:
2009 Only (The one I have)
http://www.jimellishyundaiparts.com...ECTRONIC-CONTROL-UNIT/3364438/391103F270.html
2009-2010
http://www.jimellishyundaiparts.com...ECTRONIC-CONTROL-UNIT/3364439/391103F271.html
2010 only
http://www.jimellishyundaiparts.com...ECTRONIC-CONTROL-UNIT/3364440/391103F272.html
2010-2012
http://www.jimellishyundaiparts.com...ECTRONIC-CONTROL-UNIT/8468160/391103F273.html
Hope this helps...
I think those are multiple ECU variations rather than engine variations. Jim Ellis Hyundai shows 2 different engines (2009-2010 and 2010-2013):
http://www.jimellishyundaiparts.com/showAssembly.aspx?ukey_product=8466545&ukey_assembly=417876&ukey_make=1033&modelYear=2010&ukey_model=14684&ukey_driveline=0&ukey_trimLevel=0