ECU

[TopGun]

Hi guys,<p>I was hoping someone might have information on the Mx3 / Mazda ECUs in general. I'm looking to reprogramming ECUs as my project while I'm on work term. I have a fairly in depth understand of analog and digital circuits but haven't really dealt with anything automotive related in terms of embedded computing.<p>Does anyone have circuit diagrams for our ECUs? I'm guessing the main program is just stored in an EEPROM so it shouldn't be too difficult to add a little more functionality. Things like - altering rev limiters, traction control etc...<p>Anyhow, please contact me at rtshanks@uwaterloo.ca if you have information pertaining to this aspect of our cars.<p>On a sidenote: I'd be completely okay with reverse engineering this thing if anyone has an old ECU they're not using and wants to donate it to me for a project. I'll check out some local junkyards.<p>Rob

[OsoSlo z28]

one thing about our ecu's is that you have to solder in a socket and then add your eprom. our ecu's aren't the greatest at accepting this as i was a test dummy for 3 prototypes from two diff companies on trying to incorporate the bpt fuel maps into the mx3 ecu....and they all failed.