It's a 1990 Honda Civic. Enough mileage on the factory engine to get it to the moon and well on the way back home. :lol: As I step on the gas, coming off idle, it just sputters and dies, but (and I just found this out) only when the engine has warmed up to operating temperatures. I'm thinking fuel injectors or air in the fuel line, tbh.
---------- Post added at 13:47 ---------- Previous post was at 13:32 ----------
Some further digging indicates it's probably the ignition control module.
Pull and clean your idle air control valve.