I have a 90 integra ls i put a jdm b16 in it my car was just setting running and it just shut of it started right back up then when I was driving it back fired and then shut off I just took my cap of made sure every thing was ok then I tried to start it then it started know I think its my msd playing tricks on me I not dump so it cant be anything easy I've done 4 swaps to this car my self it might also be my fuel relay but I have a new won