Hondata

Trying the ECU might take a bit. Gotta find a friend with a OBDI Honda/manual

Kinda ruling out ignition switch due to the fact that the car stays on, cluster still active and radio on.

My theory is that if it were the main relay, it would have not started in the first place. When this happens air con is on at full blast, and the relay location is right under a vent.

Also of note, if I am in stop and go and it stalls out, starts again just fine with the key.

This problem started yesterday for me. Problem is that while cruising after the car gets to temperature, the engine will momentarily turn off and a CEL will be displayed and then it will come back. The car will shake violently due to basically hitting a brick wall.
So today when I got the laptop out ...