ok, ive done the search without many good results, but my question is, which one is better? i had a jdm p13 in my obd1 accord with h22 swap, had quite a few check engine lights, got them all taken care of but there was still an eradic idle, the only other ecu the shop had was a p72 mugen ecu, i used it and there are no check engine lights and no bad idle. the car runs good but it seems like there is a bit of a struggle between 5500-6500 rpms, any experience or advice would be helpful

 

the fuel maps are different between these two ecu's...remember that the p72 is used to governing a car that only has 1.8 liters of displacement...thus, less fuel is required to power that car...you need to either chip the ecu or run hondata or use some sort of aftermarket air fuel control device...that ecu isn't very good for that motor if it isn't chipped...