It has the original Fuel Injection system. I replaced the Air intake duct when I got the car a year ago. The car was idling very rough and couldn't keep it going unless I gave it gas. What I found was that air intake duct must have rotted away and someone replaced it with something other than the correct duct. It was not a tight seal and there was leakage. Once I replaced the duct it ran fine and idled perfectly. I also replaced the fuel filter, plugs, air filter, oil & filter.