its a primera p10 1996. The car used to start fine then one day i started it and it ran for 3 seconds then died and did this for awhile. then after that for awhile it just cranked and wouldn't start. I got engine codes 143, 21 and 11 so i changed the ECU to a gtir one with no nats as error code 143 is nats and it didn't start then i changed the dizzy and the only code i get now is error code 11 and it wont start,