I have my honda accord 94 won't start even the engine is still hot what could be the problem

there are 2 heater core **** at the back of the motor .are they hot .you have to let it run to see if they gety hot . they get hot then you have a bad or stuck blend door motor

One common problem with Honda cars is the fuel pump relay.
I would check that first. Do you know if you have spark to the plugs when it won't start ?

try your fuses etc ect

Your main power relay is causing that hot, no start problem.

car overheated can cause failure at the head gasket.Overheated till the car just stops can cause ring failure thus no compression and worped head.car will not run in some cases.

sounds more like the ECM than a relay, to me.

I had a similar issue, with my 96 civic. Get a leak down test done. For me, it was bent valves.

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Pull the plugs out and then crank the engine over if water comes out of the plug holes you have a busted head gasket which would give you compression in the coolant system thusblowing out antifreeze as well as overheating.

You need to repair or replace your car's main power relay. It is a known fault on those early 90's Accords. When it gets hot, it fails and won't supply power to the fuel pump or distributor. Have it replaced.