Civikun1945

I have a friend that did an engine swap with his EK style Coupe. Now, the ECU is said to be Jap Spec. I don't know what that is but it sounds like a GS-R ECU because the Vtec crossover is heard at 4400?? and nothing near 5000. So, I assume that it is. But anyways, it is giving the code 45 he says. Is that possible? I had a OBD 1 ECU and on the maunal, i didn't find that code. If anyone can help this poor soul, please post the code for the 45. Thanks alot peoples.