THe main thing is to see if your car chassis is Zf1 or Zf2. for Zf1 2007-11 si ecu and harness will be used. For zf2 2013-15 will be used. but i have seen 2013 zf1 modles too. So the simplest way is to see if your CR-Z has S+ button or not. IF it has, use 2013-15 ECU and wiring. If not use 2007-11Just want to say “Thank you” great work!
I have read your complete post.. several times. I own a 2013 CRZ Premium “Canadian Version”
Seems like the first stage in doing a kswap is choosing the correct ECU and wiring harness?
Considering I own a 2013 you suggest to go with a 2012-2015 Canadian civic si ECU and wiring harness?
If I decide I would like to run a K20z3 or a K24a2 will I still run the 9th gen (2012-2015si) harness and ECU
Lastly can you explain the differences between the 06-11si harness and ECU versus the 2012-2015si Harness and ECU.