No they are not the same....the 2.3 mustang is called the Lima engine since it was built in lima ohio. it was used in the 2.3L pintos and now has made its way into the fox body stangs as well as the rangers in that era. the 2.5L that is in the rangers also show some similiarities to the 2.3 since the 2.5 is the same design with a larger displacement.
the 2.3 you have in a tempo is called the 2.3L HSC and was also built in lima ohio. HSC stands for High Swirl Combustion. this engine is not the same and as far as i know, nothing internal will swap over. i think that your accessories are even different.
I wish i could be of more help, but i do not know that much about the tempo engine. i do dbout that you will find many things that will interchange, but i could be absolutly wrong.