NROD315

Alright so I have a EG and I'm the EG I have a Jdm B18C Gsr. Awhile back I took the car on a long trip (at the time I had the stock P72 ECU) after the long trip the car started miss firing and would pop at higher rpms, the next day the car died and wouldn't start. I replaced the distributor and had it timed right and I now also have the base map of the Jdm b18c on the hondata s300. The car ran fine for a while but then I took it on another long car ride and again it miss fires and lags on acceleration. The car died while I was driving it and refused to start. It sounds like an ignition issue but I'm not sure and I really really really need help

Sorry for the Bible but I figure explain all of it now! Thanks for the help!