Why wont my Honda stay running

Check fuel pressure by the throttle body, if pressure is ok, you may have a clogged catalytic converter

Check air filter as well

How long does it run before cutting out? Will it crank back up or do you have to wait a while before it will crank again?

Did you ever find the problem? Here's what mind does. Similar to yours, but more detail given. This car is driving me bonkers! Lol. 2001 Honda CR-V with 239,000 miles. It ran and drove perfect for 6 months. Then one day started stalling while driving at low RPMs (less than 1500) around turns, curves, etc. It would restart and stay running if I gave it extra fuel pedal. It starts perfectly when cold. Idles or drives until warm and stalls within 2-5 minutes (yes I time it)...it does this at any RPM, I've tried idle to 4,500 RPMs. Will sometimes restart but will stall again within 1-2 minutes in same manner at any RPM (700 to 4,500). Will not restart after 2nd to 3rd start. It sometimes won't restart at all until it cools down for several hours or a day. No weird noises. No error computer codes. I've replaced the cap, rotor and coil. I've checked the plugs, wires and ignition control module, and compression, and cleaned throttle body. Inspected timing belt and valves. Confirmed fuel injector pulse. Fuel injection main relay looks and tests good. It seems to have gotten worse as I've been trouble shooting it. At first it used to restart over and over and stall shortly thereafter. Now it may not restart after first stall, but will never restart more than 2 times at most. This developed over about 4 weeks of trying to diagnose it by starting and running it. It always starts up fast and clean on first attempt, runs until warm and then stalls instantly. Like something is instantly cutting fuel or spark or both. Anyone have this happen before? I am waiting on a fuel pressure test device to see what fuel pressure is and does. Is there a way to trick the car and bypass the fuel injection main relay to verify it (the circuit board relay) doesn't have a quirky defect I can't see? It seems to be fine but the problem seems to be getting worse and has always been so fast to kill the motor that I suspect some kind of electrical problem somewhere. Thanks!