tune-up 是本坛的黑话

电子喷油的车原则上没有tune up 一说。你应当做如下事情：Change spark plug and wires (if you have wires), change air filter and fuel filter.  clean fuel injector (not using cleaning solution in fuel tank, either removal from car or do in car cleaning with top engine cleaning tools and cleaner, inspect vacuum connections, change PCV valve, inspect ignition coil pack.