My ecu is dead.... My car is a 98 civic si (canadian)

I bought a new ecu but it doesn't fit...

the original ecu number is 37820-p2p-c34
922-304628 UR

the ecu I bought is 37280-p2p-C12
1215-205329 6F

the new ECU is half the size of the original one.... from what car does my new ECU come from and why wont it fit?

 

ok then.... since no one seems to know... what is the difference between obd2 and obd2b

 

well in the us 96-98 civic is OBD2a and 99-00 is OBD2b..

 

Obd2a and obd2b are not interchangeable,

 

there is my problem

 

if you get a jumper harness it would work