this procedure is very simple ,,,, and you want to make sure to clear the ECU after the CHK engine lite was on and you did the repairs .or just to clear the codes to see if ECU will recode again

....KEY OFF

90-97 Accords ........in the underhood fuse box , remove the back up fuse 7.5 amps for about 20 seconds
98-02 Accords ........in the underdash passenger fuse box , remove fuse # 13 clock/back up 7.5 amps for about 20 seconds
03-to present .........you need to use a scan tool ,,,
your local Autozone or other part store might do it free of charge