Have you checked your EGR Flow ports? There is about 4-6 holes the size of a dime which get plugged up with carbon which causes hesitation and misfires once the engine warms up/ EGR kicks in.
The 90-93 Accords were recalled due to this and I had the exact same problem.
You can check out this different website below:
home. Comcast. Net/ em-engineering/T2T013. Pdf
Sunday, July 14th, 2013 AT 9:58 AM