1992 Honda Accord car will not start6

When the vehicle does not start, check for proper fuel pressure at the rail, ensure that the injectors are being pulsed and are delivering fuel. Also, check the vehicle for spark at one or two cylinders.

If you have good strong spark and proper fuel pressure, scan the ECU for any codes stored.

If I let car set for over 24 hrs, it will crank over but will not start

Don't wait for the time do below to determine if its fuel or spark problem

Get a starting fluid/ether/better off gas in a spray bottle and spray into the carb or the throttle body on an EFI. Did it start and die? If not disconnect a sparkplug wire or 2 and ground it to the engine -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, distributor pick-up coil, ignition control module, ECM, Ignitor cam and crank sensors- Note: If it doesn't apply disregard it

I see others beat me to it.