Rep Power: 0

I need a new ECU . conflicting information when I search. 2004 civic 4 door automatic v-tech Canadian market. Am I looking for 37820-PLM-A72 ?

 
Rep Power: 126

Just read the number on the ECU. It needs to be exactly that number because the number changes pertain to things such as manual transmission, vtec or non-vtec, and the later civics have different o2 sensors.

Hope this helps. Only reason I'm saying this is because I can't find anything within the first five minutes of searching. I'll repost once I find something. If it helps, the Canadian Si is the exact same as the EX in the U.S.

Edit: Just found it. Based on what you've said I think this is the number you're looking for. I think the A72 is for a non-vtec model, but don't quote me on that.

37820-PLR-A73