...ECU's (mostly) have many more responsibilites such as tranny control(auto), sometimes, electronic A/C engagement and well as map settings and powertrain control. They also have other safety features. Our PCMs are simpler but no one has taken the time to hack ours yet. I would say get the AFX and mate it(VERY POSSIBLE) but I don't know what is needed, such as the Neon PCM AND the AFX Computer. Our car's brain mostly just handle the the powertrain and other subtle electronics. We have many smaller circuits and processors that handle other responsibilites(for ex: tranny, airbags, mobile electricity)

Skrilla
'97 Base Talon NA
"Technology: The Only Replacement for Displacement"
"Peace and Turbo Grease"

*Skrilla
"Honest officer, I thought you were trying to race me"
Talon: 1st 2.4L
'97 Prelude
'04 350Z

Originally posted by etx
Good luck man! Project 'STFU Brian your talon is dead meat' should be on it's feet soon!