What is a diesel engine fuel injector? What are the benefits of a diesel engine fuel injector? How does a diesel engine fuel injector work, what makes it fail, and how difficult is it to maintain? These are important questions to every owner of a diesel engine. The diesel engine fuel injector is actually what separates it from average gas engines and is the most complex aspect of the diesel engine. So, let’s start off with the basics. Gas engines use port injection or a carburetor to inject fuel before the intake stroke. This occurs outside the cylinder. What this means is gas engines load…