I recently purchased a GReddy E-manage Ultimate ECU piggyback system to upgrade my vehicle performance. The problem I am having is that I have to splice into the ECU wiring, and I don't know what wires go to what. does anyone know where I can find an ECU wiring diagram for my 2007 mazda 3 2.3L?

 

if thats a piggy back and not a standalone...return it and get your money back. NO piggyback works with our cars. Our ECU overrides them and will eventually go to back to stock programming. There is a guy in orlando (FL) who can do a reflash for you for 500-600$ but you would have to ship your ECU[:-]

 

hey. welcome to the forum. its true mostly all of the piggybacks for the mazda3 are not compatable with the ecu. there are one or two out there which are compatable...im not sure if the greddy e-manage is one of them however.

check out the online mazda workshop manual and see what you can find.
http://www.mazdaclub.net/mz3ws/

good luck

 

which piggybacks are the ones that work?...i been wanting to get one for a while but cant.