paseo 5efe into tercel ecu info needed



I did a search, but couldn't find the right info. i've got a 94 tercel dx with auto and ac. the 3ee is getting pretty worn out. gutless and smoking pretty bad. valve seals i think. i have a 92 paseo, complete, with a bad tranny, auto also, but no ac. I plan on using all the underhood harness from the paseo. can i use the ecu from the paseo when i swap the 5efe into my tercel, or will it not work, as the paseo had no ac. will my tercels ac even bolt on the 5efe? i'm thinking that maybe the idle won't step up when the ac comes on like it should, or possibly not work at all. i could always do away with the ac, but i hate to as it works real well. also, will the fuel pump need to be changed, or is the tercels adequate? I'm also pretty sure i can do this swap without pulling the axleshafts, as both trannys are auto. this sound right? Any other info would be helpful.

thanks.. dave