i have emissions coming up and cant find my original ecu, i have a 01 integra gsr and i was wondering if i can use my friend's ecu off a 98 gsr, aren't all obd2 p72 ecu the same???

reason im asking is bcuz people have told me mix things and i want to know for sure

 

I believe you have an obdIIb ecu (since its an 02 and he has an obdIIa so they wouldn't work together.

http://hondata.com/techecuid.html

check out that link and just compare it.

 

thanks for the clarification