ECU question ??

[jasdeep]

hi, i have the 95 240sx s14 kouki with the KA24, i had a problem with the wiring in the car and my ecu got messed up so i bought a used one and i would just like to know if anyone knows if the little numbers at the bottom of the ecu matter, my old ecu number was A18-B94G02 and its a Q3 the used one i just bought is the same digits except the last number is a 23 instead of a 02 is this a problem or would the ecu work either way ?? its a Q3 aswell the used one i bought

thanks.

[1993fdrx7]

The big letters and numbers are all that matter

[jasdeep]

The big letters and numbers are all that matter

Just the 3Q or 4Q??