Generally the fuel injectors don't need to be replaced. In most cases they can be successfully cleaned in a fuel injector testor. I do recomend replacing the injector seals and any broken clips. You should also use new copper seals on the banjo bolts. Any Delorean vendor or most large Volvo dealers can clean the injectors. Make sure the frequency valve is buzzing, a dead Lambda can cause this symptom. Usually a bad relay. Other BIG problem is VACUUM LEAKS!!!!! The rubber on the car is over 20 years old so every car has vacuum leaks unless the rubber has been replaced. David Teitelbaum vin 10757