一辆98款Nissan风度轿车,行驶途中急加速会出现明显的类似敲缸的现象。以往在修车中,也常碰到敲缸现象,但是引起敲缸的原因,一般是由以下几种情况造成的:点火时间过早,爆震传感器不良,EGR系统不良,火花塞型号不对或间隙太大,所使用的汽油辛烷值太低,燃烧室严重积炭以及发动机温度过高。按照惯例对该车点火正时、爆震传感器、EGR A 98 Nissan sedans sedans, there will be obvious similar to knock cylinder phenomenon. In the past in the car, often knocking cylinder encountered the phenomenon, but the cause of knocking cylinder is generally caused by the following situations: ignition timing is too early, the detonation sensor is not good, EGR system, spark plug wrong type or gap Too large, the octane number of the gasoline used is too low, the combustion chamber is heavily coked and the engine temperature is too high. Accustomed to the car ignition timing, knock sensor, EGR