Unburned Gas - Purge
导致未燃烧的燃气残留在空气进气歧管和排气歧管的事件如下：
- 紧急停机
- 发动机超速
- 指令断气阀 (GSOV) 关闭，但 GSOV 没有关闭。
- 尝试起动发动机连续失败
尝试起动发动机多次失败后未燃烧的燃气可能残留在进气歧管和排气歧管。 在连续尝试起动发动机过程中，增加到一定浓度的未燃烧的燃气可能能被点燃。
进行下列步骤以便清除未燃烧的燃气：
- 如果 Cat 电子技师 (ET) 未连接到发动机，将 Cat ET 连接到发动机。
- 确认"发动机净气周期"参数值比"盘车周期"参数值少 10 秒。
- 将发动机控制置于停机模式。 发动机将按"发动机净气周期"盘车。 然后，GSOV 将通电并启用点火。 发动机将起动。
- 继续您前面的步骤。
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