this is really getting to me really bad. I have a B16 in my car and the car continuosly turns of by itself. It will stay on for about 3 minutes no and then just turns off. I've changed the main fuel relay, the O2 sensor,check the fuel pump and it works fine, checked the injectors and it works fine too, check the fuel filter and that is fine to. The car starts fine without a problem but once on for about 3-5 minutes it turns off but you can still hear the fuel pump working then it turns off after. Do you think that it's my distributor that is going bad ( on internal in it, coil, rotor & cap) ? I have news park plugs, and MSD 8mm spark plugs wires. ( i have and Engine code that reads 41 which is the primary heater O2 sensor, would that cause my car to turn off like that? I need help please....

 

Could be related to a bad ignition control module. (Shot in the dark).
Try borrowing someone's distributor to check.