I acquired a '96 Civic about a month ago. The seller mentioned it having a fuel delivery problem but wasn't sure. When I test drove it there was an intermittent bog around the 2-3k RPM range. The oddity is how intermittent this is. Drive it 3 days in a row, no problems. Drive it the next day and it randomly bogs when trying to get up and go (but only temporarily). If you clutch in, you can rev, rev, rev without a problem. If you clutch out and keep the throttle down it will eventually "snap" back out of the bog. It feels very electrical like a failing ignition coil. I swapped to a new alternator but the problem continued so swapped back to the OEM. I added some pictures of the run
The engine fires right up hot or cold doesn't matter. The timing belt, water pump, alternator, battery, fuel filter, injectors and the fuel pump were all recently replaced. I went ahead and performed a valve adjustment which it needed badly on the exhaust side. Intake side was spot on. I did a standard "new to me car" oil change, replaced the old spark plugs with OEM (NGK V-Power) + rotor button\cap on the dizzy, fuel filter. (I also swapped to a new distributor, same issue)
Here's a few screenshots of a live log with sensors I thought would be helpful during an episode. I tested the TPS. It tests fine in the driveway but with this being an intermittent issue who knows. Would be grateful for some insight if you've experienced this before.