Is there a map sensor on a 1992 honda accord
Hard to diagnose over a computer with out the proper technical data, or specs, or more info, but erratic idling could be due to a number of things, from, bad plugs/incorrectly gaped spark plugs, bad knock sensor, bad fuel/contaminated fuel/dirty fuel filter, clogged or partially clogged injector(s), loose belt/bad pulley, faulty computer, dirty air filter, bad O2 sensor(s). I've worked on Honda's since 1984, they do have a MAP sensor, they were normally located on the upper manifold towards the front on some older models, on newer models they are normally on the front-side of the manifold right around the belts and pulley's, on some they are underneath the front plastic covering that covers the water pump, sprockets and most of the front of the motor so you wont see it. The link below is NOT To sell you any parts, it's to show you what one looks like so you may find it on your engine.