I have a 1994 VTEC Honda Accord with the same hesitation problem. Around 1500 to 3000 rpm there is a hesitation during acceleration. Driving at a constant speed causes the rpms to fall and the car bucks feels like it is going to stall until the car is going slow enought to cause the rps to go above 3000. Then the acceleration kicks in and the car jerks forward until the rpms drop below 3000.

This only happens when the car has reached normal operating temperature and then it happens some of the time not all of the time. Sometimes acceleration is perfectly normal. Then the next shift the hesitation occurs.

I have posted a couple of months ago about an O2 problem and the suggestion was to check the EGR valve. I have removed and blocked off the EGR vacuum hose and this seemed to make the problem less frequent but it was still happening. Any other ideas.

There was a thead about hesitation problems in a Civic. The link is here
https://honda-tech.com/zerothread?id=151410

The problem is fixed by switching the wiring harness in the two O2 sensors.

Does my car have two O2 sensors? If so, would this fix my problem also.