what does it mean, service engine soon light

The check engine light could have come on for many reasons. Fuel injectors is only one of many. It is best to take your car to Autozone and have them check the code for you. They do it for free and will recommend a part to replace. Keep in mind that the code may show a faulty component but that not necessarly mean the component is faulty. This is one way that Autozone makes their money by recommending the part be replaced. Find out the code at Autozone then ask a question on this website and include the code in your question.